3969880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1627}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 9084240

約数和(自身を除く): 5114360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1627, 2440, 3254, 6508, 8135, 13016, 16270, 32540, 65080, 99247, 198494, 396988, 496235, 793976, 992470, 1984940, 3969880]

約数ペア:

[(1, 3969880), (2, 1984940), (4, 992470), (5, 793976), (8, 496235), (10, 396988), (20, 198494), (40, 99247), (61, 65080), (122, 32540), (244, 16270), (305, 13016), (488, 8135), (610, 6508), (1220, 3254), (1627, 2440)]