638971580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{52289}}^1$

素因数の和:52358

約数の個数: 48

約数和(自身を含む): 1475832960

約数和(自身を除く): 836861380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 52289, 104578, 209156, 261445, 522890, 679757, 1045780, 1359514, 2457583, 2719028, 3398785, 4915166, 6797570, 9830332, 12287915, 13595140, 24575830, 31948579, 49151660, 63897158, 127794316, 159742895, 319485790, 638971580]

約数ペア:

[(1, 638971580), (2, 319485790), (4, 159742895), (5, 127794316), (10, 63897158), (13, 49151660), (20, 31948579), (26, 24575830), (47, 13595140), (52, 12287915), (65, 9830332), (94, 6797570), (130, 4915166), (188, 3398785), (235, 2719028), (260, 2457583), (470, 1359514), (611, 1045780), (940, 679757), (1222, 522890), (2444, 261445), (3055, 209156), (6110, 104578), (12220, 52289)]