155570900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 348024600

約数和(自身を除く): 192453700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 149, 197, 212, 265, 298, 394, 530, 596, 745, 788, 985, 1060, 1325, 1490, 1970, 2650, 2980, 3725, 3940, 4925, 5300, 7450, 7897, 9850, 10441, 14900, 15794, 19700, 20882, 29353, 31588, 39485, 41764, 52205, 58706, 78970, 104410, 117412, 146765, 157940, 197425, 208820, 261025, 293530, 394850, 522050, 587060, 733825, 789700, 1044100, 1467650, 1555709, 2935300, 3111418, 6222836, 7778545, 15557090, 31114180, 38892725, 77785450, 155570900]

約数ペア:

[(1, 155570900), (2, 77785450), (4, 38892725), (5, 31114180), (10, 15557090), (20, 7778545), (25, 6222836), (50, 3111418), (53, 2935300), (100, 1555709), (106, 1467650), (149, 1044100), (197, 789700), (212, 733825), (265, 587060), (298, 522050), (394, 394850), (530, 293530), (596, 261025), (745, 208820), (788, 197425), (985, 157940), (1060, 146765), (1325, 117412), (1490, 104410), (1970, 78970), (2650, 58706), (2980, 52205), (3725, 41764), (3940, 39485), (4925, 31588), (5300, 29353), (7450, 20882), (7897, 19700), (9850, 15794), (10441, 14900)]