17937440

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1579}}^1$

素因数の和:1665

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 25063840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1579, 2272, 2840, 3158, 5680, 6316, 7895, 11360, 12632, 15790, 25264, 31580, 50528, 63160, 112109, 126320, 224218, 252640, 448436, 560545, 896872, 1121090, 1793744, 2242180, 3587488, 4484360, 8968720, 17937440]

約数ペア:

[(1, 17937440), (2, 8968720), (4, 4484360), (5, 3587488), (8, 2242180), (10, 1793744), (16, 1121090), (20, 896872), (32, 560545), (40, 448436), (71, 252640), (80, 224218), (142, 126320), (160, 112109), (284, 63160), (355, 50528), (568, 31580), (710, 25264), (1136, 15790), (1420, 12632), (1579, 11360), (2272, 7895), (2840, 6316), (3158, 5680)]