66784360

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10243}}^1$

素因数の和:10417

約数の個数: 32

約数和(自身を含む): 151201440

約数和(自身を除く): 84417080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10243, 20486, 40972, 51215, 81944, 102430, 204860, 409720, 1669609, 3339218, 6678436, 8348045, 13356872, 16696090, 33392180, 66784360]

約数ペア:

[(1, 66784360), (2, 33392180), (4, 16696090), (5, 13356872), (8, 8348045), (10, 6678436), (20, 3339218), (40, 1669609), (163, 409720), (326, 204860), (652, 102430), (815, 81944), (1304, 51215), (1630, 40972), (3260, 20486), (6520, 10243)]