161296225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 220968000

約数和(自身を除く): 59671775

約数列:

[1, 5, 19, 25, 43, 53, 95, 149, 215, 265, 475, 745, 817, 1007, 1075, 1325, 2279, 2831, 3725, 4085, 5035, 6407, 7897, 11395, 14155, 20425, 25175, 32035, 39485, 43301, 56975, 70775, 121733, 150043, 160175, 197425, 216505, 339571, 608665, 750215, 1082525, 1697855, 3043325, 3751075, 6451849, 8489275, 32259245, 161296225]

約数ペア:

[(1, 161296225), (5, 32259245), (19, 8489275), (25, 6451849), (43, 3751075), (53, 3043325), (95, 1697855), (149, 1082525), (215, 750215), (265, 608665), (475, 339571), (745, 216505), (817, 197425), (1007, 160175), (1075, 150043), (1325, 121733), (2279, 70775), (2831, 56975), (3725, 43301), (4085, 39485), (5035, 32035), (6407, 25175), (7897, 20425), (11395, 14155)]