81509220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1$

素因数の和:731

約数の個数: 192

約数和(自身を含む): 289578240

約数和(自身を除く): 208069020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 27, 30, 34, 36, 39, 45, 51, 52, 54, 60, 65, 68, 78, 85, 90, 102, 108, 117, 130, 135, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 270, 306, 340, 351, 390, 442, 459, 468, 510, 540, 585, 612, 663, 683, 702, 765, 780, 884, 918, 1020, 1105, 1170, 1326, 1366, 1404, 1530, 1755, 1836, 1989, 2049, 2210, 2295, 2340, 2652, 2732, 3060, 3315, 3415, 3510, 3978, 4098, 4420, 4590, 5967, 6147, 6630, 6830, 7020, 7956, 8196, 8879, 9180, 9945, 10245, 11611, 11934, 12294, 13260, 13660, 17758, 18441, 19890, 20490, 23222, 23868, 24588, 26637, 29835, 30735, 34833, 35516, 36882, 39780, 40980, 44395, 46444, 53274, 58055, 59670, 61470, 69666, 73764, 79911, 88790, 92205, 104499, 106548, 116110, 119340, 122940, 133185, 139332, 150943, 159822, 174165, 177580, 184410, 208998, 232220, 239733, 266370, 301886, 313497, 319644, 348330, 368820, 399555, 417996, 452829, 479466, 522495, 532740, 603772, 626994, 696660, 754715, 799110, 905658, 958932, 1044990, 1198665, 1253988, 1358487, 1509430, 1567485, 1598220, 1811316, 2089980, 2264145, 2397330, 2716974, 3018860, 3134970, 4075461, 4528290, 4794660, 5433948, 6269940, 6792435, 8150922, 9056580, 13584870, 16301844, 20377305, 27169740, 40754610, 81509220]

約数ペア:

[(1, 81509220), (2, 40754610), (3, 27169740), (4, 20377305), (5, 16301844), (6, 13584870), (9, 9056580), (10, 8150922), (12, 6792435), (13, 6269940), (15, 5433948), (17, 4794660), (18, 4528290), (20, 4075461), (26, 3134970), (27, 3018860), (30, 2716974), (34, 2397330), (36, 2264145), (39, 2089980), (45, 1811316), (51, 1598220), (52, 1567485), (54, 1509430), (60, 1358487), (65, 1253988), (68, 1198665), (78, 1044990), (85, 958932), (90, 905658), (102, 799110), (108, 754715), (117, 696660), (130, 626994), (135, 603772), (153, 532740), (156, 522495), (170, 479466), (180, 452829), (195, 417996), (204, 399555), (221, 368820), (234, 348330), (255, 319644), (260, 313497), (270, 301886), (306, 266370), (340, 239733), (351, 232220), (390, 208998), (442, 184410), (459, 177580), (468, 174165), (510, 159822), (540, 150943), (585, 139332), (612, 133185), (663, 122940), (683, 119340), (702, 116110), (765, 106548), (780, 104499), (884, 92205), (918, 88790), (1020, 79911), (1105, 73764), (1170, 69666), (1326, 61470), (1366, 59670), (1404, 58055), (1530, 53274), (1755, 46444), (1836, 44395), (1989, 40980), (2049, 39780), (2210, 36882), (2295, 35516), (2340, 34833), (2652, 30735), (2732, 29835), (3060, 26637), (3315, 24588), (3415, 23868), (3510, 23222), (3978, 20490), (4098, 19890), (4420, 18441), (4590, 17758), (5967, 13660), (6147, 13260), (6630, 12294), (6830, 11934), (7020, 11611), (7956, 10245), (8196, 9945), (8879, 9180)]