27971920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11279}}^1$

素因数の和:11323

約数の個数: 40

約数和(自身を含む): 67138560

約数和(自身を除く): 39166640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11279, 22558, 45116, 56395, 90232, 112790, 180464, 225580, 349649, 451160, 699298, 902320, 1398596, 1748245, 2797192, 3496490, 5594384, 6992980, 13985960, 27971920]

約数ペア:

[(1, 27971920), (2, 13985960), (4, 6992980), (5, 5594384), (8, 3496490), (10, 2797192), (16, 1748245), (20, 1398596), (31, 902320), (40, 699298), (62, 451160), (80, 349649), (124, 225580), (155, 180464), (248, 112790), (310, 90232), (496, 56395), (620, 45116), (1240, 22558), (2480, 11279)]