81424660

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 174650112

約数和(自身を除く): 93225452

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 181, 271, 332, 362, 415, 542, 724, 830, 905, 1084, 1355, 1660, 1810, 2710, 3620, 5420, 15023, 22493, 30046, 44986, 49051, 60092, 75115, 89972, 98102, 112465, 150230, 196204, 224930, 245255, 300460, 449860, 490510, 981020, 4071233, 8142466, 16284932, 20356165, 40712330, 81424660]

約数ペア:

[(1, 81424660), (2, 40712330), (4, 20356165), (5, 16284932), (10, 8142466), (20, 4071233), (83, 981020), (166, 490510), (181, 449860), (271, 300460), (332, 245255), (362, 224930), (415, 196204), (542, 150230), (724, 112465), (830, 98102), (905, 89972), (1084, 75115), (1355, 60092), (1660, 49051), (1810, 44986), (2710, 30046), (3620, 22493), (5420, 15023)]