31321579120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{971513}}^1$

素因数の和:971570

約数の個数: 80

約数和(自身を含む): 80954318592

約数和(自身を除く): 49632739472

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, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 971513, 1943026, 3886052, 4857565, 7772104, 9715130, 12629669, 15544208, 19430260, 25259338, 30116903, 38860520, 50518676, 60233806, 63148345, 77721040, 101037352, 120467612, 126296690, 150584515, 202074704, 240935224, 252593380, 301169030, 391519739, 481870448, 505186760, 602338060, 783039478, 1010373520, 1204676120, 1566078956, 1957598695, 2409352240, 3132157912, 3915197390, 6264315824, 7830394780, 15660789560, 31321579120]

約数ペア:

[(1, 31321579120), (2, 15660789560), (4, 7830394780), (5, 6264315824), (8, 3915197390), (10, 3132157912), (13, 2409352240), (16, 1957598695), (20, 1566078956), (26, 1204676120), (31, 1010373520), (40, 783039478), (52, 602338060), (62, 505186760), (65, 481870448), (80, 391519739), (104, 301169030), (124, 252593380), (130, 240935224), (155, 202074704), (208, 150584515), (248, 126296690), (260, 120467612), (310, 101037352), (403, 77721040), (496, 63148345), (520, 60233806), (620, 50518676), (806, 38860520), (1040, 30116903), (1240, 25259338), (1612, 19430260), (2015, 15544208), (2480, 12629669), (3224, 9715130), (4030, 7772104), (6448, 4857565), (8060, 3886052), (16120, 1943026), (32240, 971513)]