644112008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{1693}}^1\times {\mathrm{2503}}^1$

素因数の和:4221

約数の個数: 32

約数和(自身を含む): 1272532800

約数和(自身を除く): 628420792

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 1693, 2503, 3386, 5006, 6772, 10012, 13544, 20024, 32167, 47557, 64334, 95114, 128668, 190228, 257336, 380456, 4237579, 8475158, 16950316, 33900632, 80514001, 161028002, 322056004, 644112008]

約数ペア:

[(1, 644112008), (2, 322056004), (4, 161028002), (8, 80514001), (19, 33900632), (38, 16950316), (76, 8475158), (152, 4237579), (1693, 380456), (2503, 257336), (3386, 190228), (5006, 128668), (6772, 95114), (10012, 64334), (13544, 47557), (20024, 32167)]