81493600

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:189

約数の個数: 144

約数和(自身を含む): 214486272

約数和(自身を除く): 132992672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 43, 46, 50, 80, 86, 92, 100, 103, 115, 160, 172, 184, 200, 206, 215, 230, 344, 368, 400, 412, 430, 460, 515, 575, 688, 736, 800, 824, 860, 920, 989, 1030, 1075, 1150, 1376, 1648, 1720, 1840, 1978, 2060, 2150, 2300, 2369, 2575, 3296, 3440, 3680, 3956, 4120, 4300, 4429, 4600, 4738, 4945, 5150, 6880, 7912, 8240, 8600, 8858, 9200, 9476, 9890, 10300, 11845, 15824, 16480, 17200, 17716, 18400, 18952, 19780, 20600, 22145, 23690, 24725, 31648, 34400, 35432, 37904, 39560, 41200, 44290, 47380, 49450, 59225, 70864, 75808, 79120, 82400, 88580, 94760, 98900, 101867, 110725, 118450, 141728, 158240, 177160, 189520, 197800, 203734, 221450, 236900, 354320, 379040, 395600, 407468, 442900, 473800, 509335, 708640, 791200, 814936, 885800, 947600, 1018670, 1629872, 1771600, 1895200, 2037340, 2546675, 3259744, 3543200, 4074680, 5093350, 8149360, 10186700, 16298720, 20373400, 40746800, 81493600]

約数ペア:

[(1, 81493600), (2, 40746800), (4, 20373400), (5, 16298720), (8, 10186700), (10, 8149360), (16, 5093350), (20, 4074680), (23, 3543200), (25, 3259744), (32, 2546675), (40, 2037340), (43, 1895200), (46, 1771600), (50, 1629872), (80, 1018670), (86, 947600), (92, 885800), (100, 814936), (103, 791200), (115, 708640), (160, 509335), (172, 473800), (184, 442900), (200, 407468), (206, 395600), (215, 379040), (230, 354320), (344, 236900), (368, 221450), (400, 203734), (412, 197800), (430, 189520), (460, 177160), (515, 158240), (575, 141728), (688, 118450), (736, 110725), (800, 101867), (824, 98900), (860, 94760), (920, 88580), (989, 82400), (1030, 79120), (1075, 75808), (1150, 70864), (1376, 59225), (1648, 49450), (1720, 47380), (1840, 44290), (1978, 41200), (2060, 39560), (2150, 37904), (2300, 35432), (2369, 34400), (2575, 31648), (3296, 24725), (3440, 23690), (3680, 22145), (3956, 20600), (4120, 19780), (4300, 18952), (4429, 18400), (4600, 17716), (4738, 17200), (4945, 16480), (5150, 15824), (6880, 11845), (7912, 10300), (8240, 9890), (8600, 9476), (8858, 9200)]