872718340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{8011}}^1$

素因数の和:8452

約数の個数: 48

約数和(自身を含む): 1978643520

約数和(自身を除く): 1105925180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 419, 838, 1676, 2095, 4190, 5447, 8011, 8380, 10894, 16022, 21788, 27235, 32044, 40055, 54470, 80110, 104143, 108940, 160220, 208286, 416572, 520715, 1041430, 2082860, 3356609, 6713218, 13426436, 16783045, 33566090, 43635917, 67132180, 87271834, 174543668, 218179585, 436359170, 872718340]

約数ペア:

[(1, 872718340), (2, 436359170), (4, 218179585), (5, 174543668), (10, 87271834), (13, 67132180), (20, 43635917), (26, 33566090), (52, 16783045), (65, 13426436), (130, 6713218), (260, 3356609), (419, 2082860), (838, 1041430), (1676, 520715), (2095, 416572), (4190, 208286), (5447, 160220), (8011, 108940), (8380, 104143), (10894, 80110), (16022, 54470), (21788, 40055), (27235, 32044)]