123508520

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{8147}}^1$

素因数の和:8537

約数の個数: 32

約数和(自身を含む): 278661600

約数和(自身を除く): 155153080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 7580, 8147, 15160, 16294, 32588, 40735, 65176, 81470, 162940, 325880, 3087713, 6175426, 12350852, 15438565, 24701704, 30877130, 61754260, 123508520]

約数ペア:

[(1, 123508520), (2, 61754260), (4, 30877130), (5, 24701704), (8, 15438565), (10, 12350852), (20, 6175426), (40, 3087713), (379, 325880), (758, 162940), (1516, 81470), (1895, 65176), (3032, 40735), (3790, 32588), (7580, 16294), (8147, 15160)]