180731740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{6553}}^1$

素因数の和:6766

約数の個数: 48

約数和(自身を含む): 436024512

約数和(自身を除く): 255292772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6553, 6895, 13106, 13790, 26212, 27580, 32765, 45871, 65530, 91742, 131060, 183484, 229355, 458710, 917420, 1290941, 2581882, 5163764, 6454705, 9036587, 12909410, 18073174, 25818820, 36146348, 45182935, 90365870, 180731740]

約数ペア:

[(1, 180731740), (2, 90365870), (4, 45182935), (5, 36146348), (7, 25818820), (10, 18073174), (14, 12909410), (20, 9036587), (28, 6454705), (35, 5163764), (70, 2581882), (140, 1290941), (197, 917420), (394, 458710), (788, 229355), (985, 183484), (1379, 131060), (1970, 91742), (2758, 65530), (3940, 45871), (5516, 32765), (6553, 27580), (6895, 26212), (13106, 13790)]