72729560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25609}}^1$

素因数の和:25691

約数の個数: 32

約数和(自身を含む): 165952800

約数和(自身を除く): 93223240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25609, 51218, 102436, 128045, 204872, 256090, 512180, 1024360, 1818239, 3636478, 7272956, 9091195, 14545912, 18182390, 36364780, 72729560]

約数ペア:

[(1, 72729560), (2, 36364780), (4, 18182390), (5, 14545912), (8, 9091195), (10, 7272956), (20, 3636478), (40, 1818239), (71, 1024360), (142, 512180), (284, 256090), (355, 204872), (568, 128045), (710, 102436), (1420, 51218), (2840, 25609)]