667047820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{40823}}^1$

素因数の和:40894

約数の個数: 48

約数和(自身を含む): 1508855040

約数和(自身を除く): 841807220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 40823, 81646, 163292, 204115, 408230, 775637, 816460, 1551274, 1755389, 3102548, 3510778, 3878185, 7021556, 7756370, 8776945, 15512740, 17553890, 33352391, 35107780, 66704782, 133409564, 166761955, 333523910, 667047820]

約数ペア:

[(1, 667047820), (2, 333523910), (4, 166761955), (5, 133409564), (10, 66704782), (19, 35107780), (20, 33352391), (38, 17553890), (43, 15512740), (76, 8776945), (86, 7756370), (95, 7021556), (172, 3878185), (190, 3510778), (215, 3102548), (380, 1755389), (430, 1551274), (817, 816460), (860, 775637), (1634, 408230), (3268, 204115), (4085, 163292), (8170, 81646), (16340, 40823)]