20758971025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1\times {\mathrm{887}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 28053454464

約数和(自身を除く): 7294483439

約数列:

[1, 5, 13, 25, 65, 107, 325, 535, 673, 887, 1391, 2675, 3365, 4435, 6955, 8749, 11531, 16825, 22175, 34775, 43745, 57655, 72011, 94909, 218725, 288275, 360055, 474545, 596951, 936143, 1233817, 1800275, 2372725, 2984755, 4680715, 6169085, 7760363, 14923775, 23403575, 30845425, 38801815, 63873757, 194009075, 319368785, 830358841, 1596843925, 4151794205, 20758971025]

約数ペア:

[(1, 20758971025), (5, 4151794205), (13, 1596843925), (25, 830358841), (65, 319368785), (107, 194009075), (325, 63873757), (535, 38801815), (673, 30845425), (887, 23403575), (1391, 14923775), (2675, 7760363), (3365, 6169085), (4435, 4680715), (6955, 2984755), (8749, 2372725), (11531, 1800275), (16825, 1233817), (22175, 936143), (34775, 596951), (43745, 474545), (57655, 360055), (72011, 288275), (94909, 218725)]