28431480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:230

約数の個数: 256

約数和(自身を含む): 113218560

約数和(自身を除く): 84787080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 17, 20, 21, 22, 24, 28, 30, 33, 34, 35, 40, 42, 44, 51, 55, 56, 60, 66, 68, 70, 77, 84, 85, 88, 102, 105, 110, 119, 120, 132, 136, 140, 154, 165, 168, 170, 181, 187, 204, 210, 220, 231, 238, 255, 264, 280, 308, 330, 340, 357, 362, 374, 385, 408, 420, 440, 462, 476, 510, 543, 561, 595, 616, 660, 680, 714, 724, 748, 770, 840, 905, 924, 935, 952, 1020, 1086, 1122, 1155, 1190, 1267, 1309, 1320, 1428, 1448, 1496, 1540, 1785, 1810, 1848, 1870, 1991, 2040, 2172, 2244, 2310, 2380, 2534, 2618, 2715, 2805, 2856, 3077, 3080, 3570, 3620, 3740, 3801, 3927, 3982, 4344, 4488, 4620, 4760, 5068, 5236, 5430, 5610, 5973, 6154, 6335, 6545, 7140, 7240, 7480, 7602, 7854, 7964, 9231, 9240, 9955, 10136, 10472, 10860, 11220, 11946, 12308, 12670, 13090, 13937, 14280, 15204, 15385, 15708, 15928, 18462, 19005, 19635, 19910, 21539, 21720, 22440, 23892, 24616, 25340, 26180, 27874, 29865, 30408, 30770, 31416, 33847, 36924, 38010, 39270, 39820, 41811, 43078, 46155, 47784, 50680, 52360, 55748, 59730, 61540, 64617, 67694, 69685, 73848, 76020, 78540, 79640, 83622, 86156, 92310, 101541, 107695, 111496, 119460, 123080, 129234, 135388, 139370, 152040, 157080, 167244, 169235, 172312, 184620, 203082, 209055, 215390, 236929, 238920, 258468, 270776, 278740, 323085, 334488, 338470, 369240, 406164, 418110, 430780, 473858, 507705, 516936, 557480, 646170, 676940, 710787, 812328, 836220, 861560, 947716, 1015410, 1184645, 1292340, 1353880, 1421574, 1672440, 1895432, 2030820, 2369290, 2584680, 2843148, 3553935, 4061640, 4738580, 5686296, 7107870, 9477160, 14215740, 28431480]

約数ペア:

[(1, 28431480), (2, 14215740), (3, 9477160), (4, 7107870), (5, 5686296), (6, 4738580), (7, 4061640), (8, 3553935), (10, 2843148), (11, 2584680), (12, 2369290), (14, 2030820), (15, 1895432), (17, 1672440), (20, 1421574), (21, 1353880), (22, 1292340), (24, 1184645), (28, 1015410), (30, 947716), (33, 861560), (34, 836220), (35, 812328), (40, 710787), (42, 676940), (44, 646170), (51, 557480), (55, 516936), (56, 507705), (60, 473858), (66, 430780), (68, 418110), (70, 406164), (77, 369240), (84, 338470), (85, 334488), (88, 323085), (102, 278740), (105, 270776), (110, 258468), (119, 238920), (120, 236929), (132, 215390), (136, 209055), (140, 203082), (154, 184620), (165, 172312), (168, 169235), (170, 167244), (181, 157080), (187, 152040), (204, 139370), (210, 135388), (220, 129234), (231, 123080), (238, 119460), (255, 111496), (264, 107695), (280, 101541), (308, 92310), (330, 86156), (340, 83622), (357, 79640), (362, 78540), (374, 76020), (385, 73848), (408, 69685), (420, 67694), (440, 64617), (462, 61540), (476, 59730), (510, 55748), (543, 52360), (561, 50680), (595, 47784), (616, 46155), (660, 43078), (680, 41811), (714, 39820), (724, 39270), (748, 38010), (770, 36924), (840, 33847), (905, 31416), (924, 30770), (935, 30408), (952, 29865), (1020, 27874), (1086, 26180), (1122, 25340), (1155, 24616), (1190, 23892), (1267, 22440), (1309, 21720), (1320, 21539), (1428, 19910), (1448, 19635), (1496, 19005), (1540, 18462), (1785, 15928), (1810, 15708), (1848, 15385), (1870, 15204), (1991, 14280), (2040, 13937), (2172, 13090), (2244, 12670), (2310, 12308), (2380, 11946), (2534, 11220), (2618, 10860), (2715, 10472), (2805, 10136), (2856, 9955), (3077, 9240), (3080, 9231), (3570, 7964), (3620, 7854), (3740, 7602), (3801, 7480), (3927, 7240), (3982, 7140), (4344, 6545), (4488, 6335), (4620, 6154), (4760, 5973), (5068, 5610), (5236, 5430)]