217423960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1319}}^1$

素因数の和:1660

約数の個数: 64

約数和(自身を含む): 528897600

約数和(自身を除く): 311473640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 317, 520, 634, 1268, 1319, 1585, 2536, 2638, 3170, 4121, 5276, 6340, 6595, 8242, 10552, 12680, 13190, 16484, 17147, 20605, 26380, 32968, 34294, 41210, 52760, 68588, 82420, 85735, 137176, 164840, 171470, 342940, 418123, 685880, 836246, 1672492, 2090615, 3344984, 4181230, 5435599, 8362460, 10871198, 16724920, 21742396, 27177995, 43484792, 54355990, 108711980, 217423960]

約数ペア:

[(1, 217423960), (2, 108711980), (4, 54355990), (5, 43484792), (8, 27177995), (10, 21742396), (13, 16724920), (20, 10871198), (26, 8362460), (40, 5435599), (52, 4181230), (65, 3344984), (104, 2090615), (130, 1672492), (260, 836246), (317, 685880), (520, 418123), (634, 342940), (1268, 171470), (1319, 164840), (1585, 137176), (2536, 85735), (2638, 82420), (3170, 68588), (4121, 52760), (5276, 41210), (6340, 34294), (6595, 32968), (8242, 26380), (10552, 20605), (12680, 17147), (13190, 16484)]