25379240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7129}}^1$

素因数の和:7229

約数の個数: 32

約数和(自身を含む): 57753000

約数和(自身を除く): 32373760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7129, 14258, 28516, 35645, 57032, 71290, 142580, 285160, 634481, 1268962, 2537924, 3172405, 5075848, 6344810, 12689620, 25379240]

約数ペア:

[(1, 25379240), (2, 12689620), (4, 6344810), (5, 5075848), (8, 3172405), (10, 2537924), (20, 1268962), (40, 634481), (89, 285160), (178, 142580), (356, 71290), (445, 57032), (712, 35645), (890, 28516), (1780, 14258), (3560, 7129)]