51035920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1640

約数の個数: 80

約数和(自身を含む): 131991552

約数和(自身を除く): 80955632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1583, 1612, 2015, 2480, 3166, 3224, 4030, 6332, 6448, 7915, 8060, 12664, 15830, 16120, 20579, 25328, 31660, 32240, 41158, 49073, 63320, 82316, 98146, 102895, 126640, 164632, 196292, 205790, 245365, 329264, 392584, 411580, 490730, 637949, 785168, 823160, 981460, 1275898, 1646320, 1962920, 2551796, 3189745, 3925840, 5103592, 6379490, 10207184, 12758980, 25517960, 51035920]

約数ペア:

[(1, 51035920), (2, 25517960), (4, 12758980), (5, 10207184), (8, 6379490), (10, 5103592), (13, 3925840), (16, 3189745), (20, 2551796), (26, 1962920), (31, 1646320), (40, 1275898), (52, 981460), (62, 823160), (65, 785168), (80, 637949), (104, 490730), (124, 411580), (130, 392584), (155, 329264), (208, 245365), (248, 205790), (260, 196292), (310, 164632), (403, 126640), (496, 102895), (520, 98146), (620, 82316), (806, 63320), (1040, 49073), (1240, 41158), (1583, 32240), (1612, 31660), (2015, 25328), (2480, 20579), (3166, 16120), (3224, 15830), (4030, 12664), (6332, 8060), (6448, 7915)]