20443980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{9209}}^1$

素因数の和:9258

約数の個数: 48

約数和(自身を含む): 58796640

約数和(自身を除く): 38352660

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, 9209, 18418, 27627, 36836, 46045, 55254, 92090, 110508, 138135, 184180, 276270, 340733, 552540, 681466, 1022199, 1362932, 1703665, 2044398, 3407330, 4088796, 5110995, 6814660, 10221990, 20443980]

約数ペア:

[(1, 20443980), (2, 10221990), (3, 6814660), (4, 5110995), (5, 4088796), (6, 3407330), (10, 2044398), (12, 1703665), (15, 1362932), (20, 1022199), (30, 681466), (37, 552540), (60, 340733), (74, 276270), (111, 184180), (148, 138135), (185, 110508), (222, 92090), (370, 55254), (444, 46045), (555, 36836), (740, 27627), (1110, 18418), (2220, 9209)]