28528990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{13147}}^1$

素因数の和:13192

約数の個数: 32

約数和(自身を含む): 60585984

約数和(自身を除く): 32056994

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 13147, 26294, 65735, 92029, 131470, 184058, 407557, 460145, 815114, 920290, 2037785, 2852899, 4075570, 5705798, 14264495, 28528990]

約数ペア:

[(1, 28528990), (2, 14264495), (5, 5705798), (7, 4075570), (10, 2852899), (14, 2037785), (31, 920290), (35, 815114), (62, 460145), (70, 407557), (155, 184058), (217, 131470), (310, 92029), (434, 65735), (1085, 26294), (2170, 13147)]