20400630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 30920970

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 131, 145, 174, 179, 262, 290, 358, 393, 435, 537, 655, 786, 870, 895, 1074, 1310, 1790, 1965, 2685, 3799, 3930, 5191, 5370, 7598, 10382, 11397, 15573, 18995, 22794, 23449, 25955, 31146, 37990, 46898, 51910, 56985, 70347, 77865, 113970, 117245, 140694, 155730, 234490, 351735, 680021, 703470, 1360042, 2040063, 3400105, 4080126, 6800210, 10200315, 20400630]

約数ペア:

[(1, 20400630), (2, 10200315), (3, 6800210), (5, 4080126), (6, 3400105), (10, 2040063), (15, 1360042), (29, 703470), (30, 680021), (58, 351735), (87, 234490), (131, 155730), (145, 140694), (174, 117245), (179, 113970), (262, 77865), (290, 70347), (358, 56985), (393, 51910), (435, 46898), (537, 37990), (655, 31146), (786, 25955), (870, 23449), (895, 22794), (1074, 18995), (1310, 15573), (1790, 11397), (1965, 10382), (2685, 7598), (3799, 5370), (3930, 5191)]