64462760

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3671}}^1$

素因数の和:4121

約数の個数: 32

約数和(自身を含む): 145411200

約数和(自身を除く): 80948440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 3671, 4390, 7342, 8780, 14684, 17560, 18355, 29368, 36710, 73420, 146840, 1611569, 3223138, 6446276, 8057845, 12892552, 16115690, 32231380, 64462760]

約数ペア:

[(1, 64462760), (2, 32231380), (4, 16115690), (5, 12892552), (8, 8057845), (10, 6446276), (20, 3223138), (40, 1611569), (439, 146840), (878, 73420), (1756, 36710), (2195, 29368), (3512, 18355), (3671, 17560), (4390, 14684), (7342, 8780)]