1305990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{691}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 3985920

約数和(自身を除く): 2679930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 691, 945, 1382, 1890, 2073, 3455, 4146, 4837, 6219, 6910, 9674, 10365, 12438, 14511, 18657, 20730, 24185, 29022, 31095, 37314, 43533, 48370, 62190, 72555, 87066, 93285, 130599, 145110, 186570, 217665, 261198, 435330, 652995, 1305990]

約数ペア:

[(1, 1305990), (2, 652995), (3, 435330), (5, 261198), (6, 217665), (7, 186570), (9, 145110), (10, 130599), (14, 93285), (15, 87066), (18, 72555), (21, 62190), (27, 48370), (30, 43533), (35, 37314), (42, 31095), (45, 29022), (54, 24185), (63, 20730), (70, 18657), (90, 14511), (105, 12438), (126, 10365), (135, 9674), (189, 6910), (210, 6219), (270, 4837), (315, 4146), (378, 3455), (630, 2073), (691, 1890), (945, 1382)]