1238384360

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{222731}}^1$

素因数の和:222881

約数の個数: 32

約数和(自身を含む): 2806423200

約数和(自身を除く): 1568038840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 222731, 445462, 890924, 1113655, 1781848, 2227310, 4454620, 8909240, 30959609, 61919218, 123838436, 154798045, 247676872, 309596090, 619192180, 1238384360]

約数ペア:

[(1, 1238384360), (2, 619192180), (4, 309596090), (5, 247676872), (8, 154798045), (10, 123838436), (20, 61919218), (40, 30959609), (139, 8909240), (278, 4454620), (556, 2227310), (695, 1781848), (1112, 1113655), (1390, 890924), (2780, 445462), (5560, 222731)]