68521960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 166960080

約数和(自身を除く): 98438120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 313, 421, 520, 626, 842, 1252, 1565, 1684, 2105, 2504, 3130, 3368, 4069, 4210, 5473, 6260, 8138, 8420, 10946, 12520, 16276, 16840, 20345, 21892, 27365, 32552, 40690, 43784, 54730, 81380, 109460, 131773, 162760, 218920, 263546, 527092, 658865, 1054184, 1317730, 1713049, 2635460, 3426098, 5270920, 6852196, 8565245, 13704392, 17130490, 34260980, 68521960]

約数ペア:

[(1, 68521960), (2, 34260980), (4, 17130490), (5, 13704392), (8, 8565245), (10, 6852196), (13, 5270920), (20, 3426098), (26, 2635460), (40, 1713049), (52, 1317730), (65, 1054184), (104, 658865), (130, 527092), (260, 263546), (313, 218920), (421, 162760), (520, 131773), (626, 109460), (842, 81380), (1252, 54730), (1565, 43784), (1684, 40690), (2105, 32552), (2504, 27365), (3130, 21892), (3368, 20345), (4069, 16840), (4210, 16276), (5473, 12520), (6260, 10946), (8138, 8420)]