31795640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 74057760

約数和(自身を除く): 42262120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 83, 122, 157, 166, 244, 305, 314, 332, 415, 488, 610, 628, 664, 785, 830, 1220, 1256, 1570, 1660, 2440, 3140, 3320, 5063, 6280, 9577, 10126, 13031, 19154, 20252, 25315, 26062, 38308, 40504, 47885, 50630, 52124, 65155, 76616, 95770, 101260, 104248, 130310, 191540, 202520, 260620, 383080, 521240, 794891, 1589782, 3179564, 3974455, 6359128, 7948910, 15897820, 31795640]

約数ペア:

[(1, 31795640), (2, 15897820), (4, 7948910), (5, 6359128), (8, 3974455), (10, 3179564), (20, 1589782), (40, 794891), (61, 521240), (83, 383080), (122, 260620), (157, 202520), (166, 191540), (244, 130310), (305, 104248), (314, 101260), (332, 95770), (415, 76616), (488, 65155), (610, 52124), (628, 50630), (664, 47885), (785, 40504), (830, 38308), (1220, 26062), (1256, 25315), (1570, 20252), (1660, 19154), (2440, 13031), (3140, 10126), (3320, 9577), (5063, 6280)]