56991220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19927}}^1$

素因数の和:19960

約数の個数: 48

約数和(自身を含む): 140611968

約数和(自身を除く): 83620748

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 19927, 39854, 79708, 99635, 199270, 219197, 259051, 398540, 438394, 518102, 876788, 1036204, 1095985, 1295255, 2191970, 2590510, 2849561, 4383940, 5181020, 5699122, 11398244, 14247805, 28495610, 56991220]

約数ペア:

[(1, 56991220), (2, 28495610), (4, 14247805), (5, 11398244), (10, 5699122), (11, 5181020), (13, 4383940), (20, 2849561), (22, 2590510), (26, 2191970), (44, 1295255), (52, 1095985), (55, 1036204), (65, 876788), (110, 518102), (130, 438394), (143, 398540), (220, 259051), (260, 219197), (286, 199270), (572, 99635), (715, 79708), (1430, 39854), (2860, 19927)]