87971940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2$

素因数の和:116

約数の個数: 288

約数和(自身を含む): 340381440

約数和(自身を除く): 252409500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 37, 42, 45, 51, 54, 60, 63, 68, 70, 74, 84, 85, 90, 102, 105, 108, 111, 119, 126, 135, 140, 148, 153, 170, 180, 185, 189, 204, 210, 222, 238, 252, 255, 259, 270, 306, 315, 333, 340, 357, 370, 378, 420, 444, 459, 476, 510, 518, 540, 555, 595, 612, 629, 630, 666, 714, 740, 756, 765, 777, 918, 945, 999, 1020, 1036, 1071, 1110, 1190, 1258, 1260, 1295, 1332, 1369, 1428, 1530, 1554, 1665, 1785, 1836, 1887, 1890, 1998, 2142, 2220, 2295, 2331, 2380, 2516, 2590, 2738, 3060, 3108, 3145, 3213, 3330, 3570, 3774, 3780, 3885, 3996, 4107, 4284, 4403, 4590, 4662, 4995, 5180, 5355, 5476, 5661, 6290, 6426, 6660, 6845, 6993, 7140, 7548, 7770, 8214, 8806, 9180, 9324, 9435, 9583, 9990, 10710, 11322, 11655, 12321, 12580, 12852, 13209, 13690, 13986, 15540, 16065, 16428, 16983, 17612, 18870, 19166, 19980, 20535, 21420, 22015, 22644, 23273, 23310, 24642, 26418, 27380, 27972, 28305, 28749, 32130, 33966, 34965, 36963, 37740, 38332, 39627, 41070, 44030, 46546, 46620, 47915, 49284, 52836, 56610, 57498, 61605, 64260, 66045, 67932, 69819, 69930, 73926, 79254, 82140, 84915, 86247, 88060, 93092, 95830, 113220, 114996, 116365, 118881, 123210, 132090, 139638, 139860, 143745, 147852, 158508, 162911, 169830, 172494, 184815, 191660, 198135, 209457, 232730, 237762, 246420, 258741, 264180, 279276, 287490, 325822, 339660, 344988, 349095, 369630, 396270, 418914, 431235, 465460, 475524, 488733, 517482, 574980, 594405, 628371, 651644, 698190, 739260, 792540, 814555, 837828, 862470, 977466, 1034964, 1047285, 1188810, 1256742, 1293705, 1396380, 1466199, 1629110, 1724940, 1954932, 2094570, 2377620, 2443665, 2513484, 2587410, 2932398, 3141855, 3258220, 4189140, 4398597, 4887330, 5174820, 5864796, 6283710, 7330995, 8797194, 9774660, 12567420, 14661990, 17594388, 21992985, 29323980, 43985970, 87971940]

約数ペア:

[(1, 87971940), (2, 43985970), (3, 29323980), (4, 21992985), (5, 17594388), (6, 14661990), (7, 12567420), (9, 9774660), (10, 8797194), (12, 7330995), (14, 6283710), (15, 5864796), (17, 5174820), (18, 4887330), (20, 4398597), (21, 4189140), (27, 3258220), (28, 3141855), (30, 2932398), (34, 2587410), (35, 2513484), (36, 2443665), (37, 2377620), (42, 2094570), (45, 1954932), (51, 1724940), (54, 1629110), (60, 1466199), (63, 1396380), (68, 1293705), (70, 1256742), (74, 1188810), (84, 1047285), (85, 1034964), (90, 977466), (102, 862470), (105, 837828), (108, 814555), (111, 792540), (119, 739260), (126, 698190), (135, 651644), (140, 628371), (148, 594405), (153, 574980), (170, 517482), (180, 488733), (185, 475524), (189, 465460), (204, 431235), (210, 418914), (222, 396270), (238, 369630), (252, 349095), (255, 344988), (259, 339660), (270, 325822), (306, 287490), (315, 279276), (333, 264180), (340, 258741), (357, 246420), (370, 237762), (378, 232730), (420, 209457), (444, 198135), (459, 191660), (476, 184815), (510, 172494), (518, 169830), (540, 162911), (555, 158508), (595, 147852), (612, 143745), (629, 139860), (630, 139638), (666, 132090), (714, 123210), (740, 118881), (756, 116365), (765, 114996), (777, 113220), (918, 95830), (945, 93092), (999, 88060), (1020, 86247), (1036, 84915), (1071, 82140), (1110, 79254), (1190, 73926), (1258, 69930), (1260, 69819), (1295, 67932), (1332, 66045), (1369, 64260), (1428, 61605), (1530, 57498), (1554, 56610), (1665, 52836), (1785, 49284), (1836, 47915), (1887, 46620), (1890, 46546), (1998, 44030), (2142, 41070), (2220, 39627), (2295, 38332), (2331, 37740), (2380, 36963), (2516, 34965), (2590, 33966), (2738, 32130), (3060, 28749), (3108, 28305), (3145, 27972), (3213, 27380), (3330, 26418), (3570, 24642), (3774, 23310), (3780, 23273), (3885, 22644), (3996, 22015), (4107, 21420), (4284, 20535), (4403, 19980), (4590, 19166), (4662, 18870), (4995, 17612), (5180, 16983), (5355, 16428), (5476, 16065), (5661, 15540), (6290, 13986), (6426, 13690), (6660, 13209), (6845, 12852), (6993, 12580), (7140, 12321), (7548, 11655), (7770, 11322), (8214, 10710), (8806, 9990), (9180, 9583), (9324, 9435)]