321917360

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{12157}}^1$

素因数の和:12501

約数の個数: 40

約数和(自身を含む): 750780816

約数和(自身を除く): 428863456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2648, 3310, 5296, 6620, 12157, 13240, 24314, 26480, 48628, 60785, 97256, 121570, 194512, 243140, 486280, 972560, 4023967, 8047934, 16095868, 20119835, 32191736, 40239670, 64383472, 80479340, 160958680, 321917360]

約数ペア:

[(1, 321917360), (2, 160958680), (4, 80479340), (5, 64383472), (8, 40239670), (10, 32191736), (16, 20119835), (20, 16095868), (40, 8047934), (80, 4023967), (331, 972560), (662, 486280), (1324, 243140), (1655, 194512), (2648, 121570), (3310, 97256), (5296, 60785), (6620, 48628), (12157, 26480), (13240, 24314)]