25772240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24781}}^1$

素因数の和:24807

約数の個数: 40

約数和(自身を含む): 64532328

約数和(自身を除く): 38760088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24781, 49562, 99124, 123905, 198248, 247810, 322153, 396496, 495620, 644306, 991240, 1288612, 1610765, 1982480, 2577224, 3221530, 5154448, 6443060, 12886120, 25772240]

約数ペア:

[(1, 25772240), (2, 12886120), (4, 6443060), (5, 5154448), (8, 3221530), (10, 2577224), (13, 1982480), (16, 1610765), (20, 1288612), (26, 991240), (40, 644306), (52, 495620), (65, 396496), (80, 322153), (104, 247810), (130, 198248), (208, 123905), (260, 99124), (520, 49562), (1040, 24781)]