18762520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{593}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 48755520

約数和(自身を除く): 29993000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 593, 791, 904, 1130, 1186, 1582, 2260, 2372, 2965, 3164, 3955, 4151, 4520, 4744, 5930, 6328, 7910, 8302, 11860, 15820, 16604, 20755, 23720, 31640, 33208, 41510, 67009, 83020, 134018, 166040, 268036, 335045, 469063, 536072, 670090, 938126, 1340180, 1876252, 2345315, 2680360, 3752504, 4690630, 9381260, 18762520]

約数ペア:

[(1, 18762520), (2, 9381260), (4, 4690630), (5, 3752504), (7, 2680360), (8, 2345315), (10, 1876252), (14, 1340180), (20, 938126), (28, 670090), (35, 536072), (40, 469063), (56, 335045), (70, 268036), (113, 166040), (140, 134018), (226, 83020), (280, 67009), (452, 41510), (565, 33208), (593, 31640), (791, 23720), (904, 20755), (1130, 16604), (1186, 15820), (1582, 11860), (2260, 8302), (2372, 7910), (2965, 6328), (3164, 5930), (3955, 4744), (4151, 4520)]