7951960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3259}}^1$

素因数の和:3331

約数の個数: 32

約数和(自身を含む): 18190800

約数和(自身を除く): 10238840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3259, 6518, 13036, 16295, 26072, 32590, 65180, 130360, 198799, 397598, 795196, 993995, 1590392, 1987990, 3975980, 7951960]

約数ペア:

[(1, 7951960), (2, 3975980), (4, 1987990), (5, 1590392), (8, 993995), (10, 795196), (20, 397598), (40, 198799), (61, 130360), (122, 65180), (244, 32590), (305, 26072), (488, 16295), (610, 13036), (1220, 6518), (2440, 3259)]