85840820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19421}}^1$

素因数の和:19460

約数の個数: 48

約数和(自身を含む): 205562448

約数和(自身を除く): 119721628

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 19421, 38842, 77684, 97105, 194210, 252473, 330157, 388420, 504946, 660314, 1009892, 1262365, 1320628, 1650785, 2524730, 3301570, 4292041, 5049460, 6603140, 8584082, 17168164, 21460205, 42920410, 85840820]

約数ペア:

[(1, 85840820), (2, 42920410), (4, 21460205), (5, 17168164), (10, 8584082), (13, 6603140), (17, 5049460), (20, 4292041), (26, 3301570), (34, 2524730), (52, 1650785), (65, 1320628), (68, 1262365), (85, 1009892), (130, 660314), (170, 504946), (221, 388420), (260, 330157), (340, 252473), (442, 194210), (884, 97105), (1105, 77684), (2210, 38842), (4420, 19421)]