71997040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 178863552

約数和(自身を除く): 106866512

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 167, 170, 272, 317, 334, 340, 634, 668, 680, 835, 1268, 1336, 1360, 1585, 1670, 2536, 2672, 2839, 3170, 3340, 5072, 5389, 5678, 6340, 6680, 10778, 11356, 12680, 13360, 14195, 21556, 22712, 25360, 26945, 28390, 43112, 45424, 52939, 53890, 56780, 86224, 105878, 107780, 113560, 211756, 215560, 227120, 264695, 423512, 431120, 529390, 847024, 899963, 1058780, 1799926, 2117560, 3599852, 4235120, 4499815, 7199704, 8999630, 14399408, 17999260, 35998520, 71997040]

約数ペア:

[(1, 71997040), (2, 35998520), (4, 17999260), (5, 14399408), (8, 8999630), (10, 7199704), (16, 4499815), (17, 4235120), (20, 3599852), (34, 2117560), (40, 1799926), (68, 1058780), (80, 899963), (85, 847024), (136, 529390), (167, 431120), (170, 423512), (272, 264695), (317, 227120), (334, 215560), (340, 211756), (634, 113560), (668, 107780), (680, 105878), (835, 86224), (1268, 56780), (1336, 53890), (1360, 52939), (1585, 45424), (1670, 43112), (2536, 28390), (2672, 26945), (2839, 25360), (3170, 22712), (3340, 21556), (5072, 14195), (5389, 13360), (5678, 12680), (6340, 11356), (6680, 10778)]