31021250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 80

約数和(自身を含む): 66128832

約数和(自身を除く): 35107582

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 83, 115, 125, 130, 166, 230, 250, 299, 325, 415, 575, 598, 625, 650, 830, 1079, 1150, 1250, 1495, 1625, 1909, 2075, 2158, 2875, 2990, 3250, 3818, 4150, 5395, 5750, 7475, 8125, 9545, 10375, 10790, 14375, 14950, 16250, 19090, 20750, 24817, 26975, 28750, 37375, 47725, 49634, 51875, 53950, 74750, 95450, 103750, 124085, 134875, 186875, 238625, 248170, 269750, 373750, 477250, 620425, 674375, 1193125, 1240850, 1348750, 2386250, 3102125, 6204250, 15510625, 31021250]

約数ペア:

[(1, 31021250), (2, 15510625), (5, 6204250), (10, 3102125), (13, 2386250), (23, 1348750), (25, 1240850), (26, 1193125), (46, 674375), (50, 620425), (65, 477250), (83, 373750), (115, 269750), (125, 248170), (130, 238625), (166, 186875), (230, 134875), (250, 124085), (299, 103750), (325, 95450), (415, 74750), (575, 53950), (598, 51875), (625, 49634), (650, 47725), (830, 37375), (1079, 28750), (1150, 26975), (1250, 24817), (1495, 20750), (1625, 19090), (1909, 16250), (2075, 14950), (2158, 14375), (2875, 10790), (2990, 10375), (3250, 9545), (3818, 8125), (4150, 7475), (5395, 5750)]