1256912500

素因数分解:

$2^2\times 5^5\times {\mathrm{193}}^1\times {\mathrm{521}}^1$

素因数の和:743

約数の個数: 72

約数和(自身を含む): 2768869656

約数和(自身を除く): 1511957156

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 193, 250, 386, 500, 521, 625, 772, 965, 1042, 1250, 1930, 2084, 2500, 2605, 3125, 3860, 4825, 5210, 6250, 9650, 10420, 12500, 13025, 19300, 24125, 26050, 48250, 52100, 65125, 96500, 100553, 120625, 130250, 201106, 241250, 260500, 325625, 402212, 482500, 502765, 603125, 651250, 1005530, 1206250, 1302500, 1628125, 2011060, 2412500, 2513825, 3256250, 5027650, 6512500, 10055300, 12569125, 25138250, 50276500, 62845625, 125691250, 251382500, 314228125, 628456250, 1256912500]

約数ペア:

[(1, 1256912500), (2, 628456250), (4, 314228125), (5, 251382500), (10, 125691250), (20, 62845625), (25, 50276500), (50, 25138250), (100, 12569125), (125, 10055300), (193, 6512500), (250, 5027650), (386, 3256250), (500, 2513825), (521, 2412500), (625, 2011060), (772, 1628125), (965, 1302500), (1042, 1206250), (1250, 1005530), (1930, 651250), (2084, 603125), (2500, 502765), (2605, 482500), (3125, 402212), (3860, 325625), (4825, 260500), (5210, 241250), (6250, 201106), (9650, 130250), (10420, 120625), (12500, 100553), (13025, 96500), (19300, 65125), (24125, 52100), (26050, 48250)]