1627695920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{656329}}^1$

素因数の和:656373

約数の個数: 40

約数和(自身を含む): 3906476160

約数和(自身を除く): 2278780240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 656329, 1312658, 2625316, 3281645, 5250632, 6563290, 10501264, 13126580, 20346199, 26253160, 40692398, 52506320, 81384796, 101730995, 162769592, 203461990, 325539184, 406923980, 813847960, 1627695920]

約数ペア:

[(1, 1627695920), (2, 813847960), (4, 406923980), (5, 325539184), (8, 203461990), (10, 162769592), (16, 101730995), (20, 81384796), (31, 52506320), (40, 40692398), (62, 26253160), (80, 20346199), (124, 13126580), (155, 10501264), (248, 6563290), (310, 5250632), (496, 3281645), (620, 2625316), (1240, 1312658), (2480, 656329)]