254756080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:878

約数の個数: 80

約数和(自身を含む): 612817920

約数和(自身を除く): 358061840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 103, 172, 206, 215, 344, 412, 430, 515, 688, 719, 824, 860, 1030, 1438, 1648, 1720, 2060, 2876, 3440, 3595, 4120, 4429, 5752, 7190, 8240, 8858, 11504, 14380, 17716, 22145, 28760, 30917, 35432, 44290, 57520, 61834, 70864, 74057, 88580, 123668, 148114, 154585, 177160, 247336, 296228, 309170, 354320, 370285, 494672, 592456, 618340, 740570, 1184912, 1236680, 1481140, 2473360, 2962280, 3184451, 5924560, 6368902, 12737804, 15922255, 25475608, 31844510, 50951216, 63689020, 127378040, 254756080]

約数ペア:

[(1, 254756080), (2, 127378040), (4, 63689020), (5, 50951216), (8, 31844510), (10, 25475608), (16, 15922255), (20, 12737804), (40, 6368902), (43, 5924560), (80, 3184451), (86, 2962280), (103, 2473360), (172, 1481140), (206, 1236680), (215, 1184912), (344, 740570), (412, 618340), (430, 592456), (515, 494672), (688, 370285), (719, 354320), (824, 309170), (860, 296228), (1030, 247336), (1438, 177160), (1648, 154585), (1720, 148114), (2060, 123668), (2876, 88580), (3440, 74057), (3595, 70864), (4120, 61834), (4429, 57520), (5752, 44290), (7190, 35432), (8240, 30917), (8858, 28760), (11504, 22145), (14380, 17716)]