31425820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1289}}^1$

素因数の和:1374

約数の個数: 48

約数和(自身を含む): 70217280

約数和(自身を除く): 38791460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 1060, 1219, 1289, 2438, 2578, 4876, 5156, 6095, 6445, 12190, 12890, 24380, 25780, 29647, 59294, 68317, 118588, 136634, 148235, 273268, 296470, 341585, 592940, 683170, 1366340, 1571291, 3142582, 6285164, 7856455, 15712910, 31425820]

約数ペア:

[(1, 31425820), (2, 15712910), (4, 7856455), (5, 6285164), (10, 3142582), (20, 1571291), (23, 1366340), (46, 683170), (53, 592940), (92, 341585), (106, 296470), (115, 273268), (212, 148235), (230, 136634), (265, 118588), (460, 68317), (530, 59294), (1060, 29647), (1219, 25780), (1289, 24380), (2438, 12890), (2578, 12190), (4876, 6445), (5156, 6095)]