20120870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3733}}^1$

素因数の和:3765

約数の個数: 48

約数和(自身を含む): 45973008

約数和(自身を除く): 25852138

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 3733, 5390, 7466, 18665, 26131, 37330, 41063, 52262, 82126, 130655, 182917, 205315, 261310, 287441, 365834, 410630, 574882, 914585, 1437205, 1829170, 2012087, 2874410, 4024174, 10060435, 20120870]

約数ペア:

[(1, 20120870), (2, 10060435), (5, 4024174), (7, 2874410), (10, 2012087), (11, 1829170), (14, 1437205), (22, 914585), (35, 574882), (49, 410630), (55, 365834), (70, 287441), (77, 261310), (98, 205315), (110, 182917), (154, 130655), (245, 82126), (385, 52262), (490, 41063), (539, 37330), (770, 26131), (1078, 18665), (2695, 7466), (3733, 5390)]