20121432708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{2293}}^1\times {\mathrm{4327}}^1$

素因数の和:6653

約数の個数: 72

約数和(自身を含む): 50873285568

約数和(自身を除く): 30751852860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 2293, 4327, 4586, 6879, 8654, 9172, 12981, 13758, 17308, 25962, 27516, 29809, 51924, 56251, 59618, 89427, 112502, 119236, 168753, 178854, 225004, 337506, 357708, 387517, 675012, 731263, 775034, 1162551, 1462526, 1550068, 2193789, 2325102, 2925052, 4387578, 4650204, 8775156, 9921811, 19843622, 29765433, 39687244, 59530866, 119061732, 128983543, 257967086, 386950629, 515934172, 773901258, 1547802516, 1676786059, 3353572118, 5030358177, 6707144236, 10060716354, 20121432708]

約数ペア:

[(1, 20121432708), (2, 10060716354), (3, 6707144236), (4, 5030358177), (6, 3353572118), (12, 1676786059), (13, 1547802516), (26, 773901258), (39, 515934172), (52, 386950629), (78, 257967086), (156, 128983543), (169, 119061732), (338, 59530866), (507, 39687244), (676, 29765433), (1014, 19843622), (2028, 9921811), (2293, 8775156), (4327, 4650204), (4586, 4387578), (6879, 2925052), (8654, 2325102), (9172, 2193789), (12981, 1550068), (13758, 1462526), (17308, 1162551), (25962, 775034), (27516, 731263), (29809, 675012), (51924, 387517), (56251, 357708), (59618, 337506), (89427, 225004), (112502, 178854), (119236, 168753)]