128555710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 246888000

約数和(自身を除く): 118332290

約数列:

[1, 2, 5, 10, 19, 38, 95, 149, 190, 239, 298, 361, 478, 722, 745, 1195, 1490, 1805, 2390, 2831, 3610, 4541, 5662, 9082, 14155, 22705, 28310, 35611, 45410, 53789, 71222, 86279, 107578, 172558, 178055, 268945, 356110, 431395, 537890, 676609, 862790, 1353218, 3383045, 6766090, 12855571, 25711142, 64277855, 128555710]

約数ペア:

[(1, 128555710), (2, 64277855), (5, 25711142), (10, 12855571), (19, 6766090), (38, 3383045), (95, 1353218), (149, 862790), (190, 676609), (239, 537890), (298, 431395), (361, 356110), (478, 268945), (722, 178055), (745, 172558), (1195, 107578), (1490, 86279), (1805, 71222), (2390, 53789), (2831, 45410), (3610, 35611), (4541, 28310), (5662, 22705), (9082, 14155)]