180221820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{81181}}^1$

素因数の和:81230

約数の個数: 48

約数和(自身を含む): 518265888

約数和(自身を除く): 338044068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 81181, 162362, 243543, 324724, 405905, 487086, 811810, 974172, 1217715, 1623620, 2435430, 3003697, 4870860, 6007394, 9011091, 12014788, 15018485, 18022182, 30036970, 36044364, 45055455, 60073940, 90110910, 180221820]

約数ペア:

[(1, 180221820), (2, 90110910), (3, 60073940), (4, 45055455), (5, 36044364), (6, 30036970), (10, 18022182), (12, 15018485), (15, 12014788), (20, 9011091), (30, 6007394), (37, 4870860), (60, 3003697), (74, 2435430), (111, 1623620), (148, 1217715), (185, 974172), (222, 811810), (370, 487086), (444, 405905), (555, 324724), (740, 243543), (1110, 162362), (2220, 81181)]