25002920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 60419520

約数和(自身を除く): 35416600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 83, 85, 136, 166, 170, 332, 340, 415, 443, 664, 680, 830, 886, 1411, 1660, 1772, 2215, 2822, 3320, 3544, 4430, 5644, 7055, 7531, 8860, 11288, 14110, 15062, 17720, 28220, 30124, 36769, 37655, 56440, 60248, 73538, 75310, 147076, 150620, 183845, 294152, 301240, 367690, 625073, 735380, 1250146, 1470760, 2500292, 3125365, 5000584, 6250730, 12501460, 25002920]

約数ペア:

[(1, 25002920), (2, 12501460), (4, 6250730), (5, 5000584), (8, 3125365), (10, 2500292), (17, 1470760), (20, 1250146), (34, 735380), (40, 625073), (68, 367690), (83, 301240), (85, 294152), (136, 183845), (166, 150620), (170, 147076), (332, 75310), (340, 73538), (415, 60248), (443, 56440), (664, 37655), (680, 36769), (830, 30124), (886, 28220), (1411, 17720), (1660, 15062), (1772, 14110), (2215, 11288), (2822, 8860), (3320, 7531), (3544, 7055), (4430, 5644)]