31190960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12577}}^1$

素因数の和:12621

約数の個数: 40

約数和(自身を含む): 74864256

約数和(自身を除く): 43673296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12577, 25154, 50308, 62885, 100616, 125770, 201232, 251540, 389887, 503080, 779774, 1006160, 1559548, 1949435, 3119096, 3898870, 6238192, 7797740, 15595480, 31190960]

約数ペア:

[(1, 31190960), (2, 15595480), (4, 7797740), (5, 6238192), (8, 3898870), (10, 3119096), (16, 1949435), (20, 1559548), (31, 1006160), (40, 779774), (62, 503080), (80, 389887), (124, 251540), (155, 201232), (248, 125770), (310, 100616), (496, 62885), (620, 50308), (1240, 25154), (2480, 12577)]