17940280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6317}}^1$

素因数の和:6399

約数の個数: 32

約数和(自身を含む): 40940640

約数和(自身を除く): 23000360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6317, 12634, 25268, 31585, 50536, 63170, 126340, 252680, 448507, 897014, 1794028, 2242535, 3588056, 4485070, 8970140, 17940280]

約数ペア:

[(1, 17940280), (2, 8970140), (4, 4485070), (5, 3588056), (8, 2242535), (10, 1794028), (20, 897014), (40, 448507), (71, 252680), (142, 126340), (284, 63170), (355, 50536), (568, 31585), (710, 25268), (1420, 12634), (2840, 6317)]