19964128080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6398759}}^1$

素因数の和:6398788

約数の個数: 80

約数和(自身を含む): 66649484160

約数和(自身を除く): 46685356080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6398759, 12797518, 19196277, 25595036, 31993795, 38392554, 51190072, 63987590, 76785108, 83183867, 95981385, 102380144, 127975180, 153570216, 166367734, 191962770, 249551601, 255950360, 307140432, 332735468, 383925540, 415919335, 499103202, 511900720, 665470936, 767851080, 831838670, 998206404, 1247758005, 1330941872, 1535702160, 1663677340, 1996412808, 2495516010, 3327354680, 3992825616, 4991032020, 6654709360, 9982064040, 19964128080]

約数ペア:

[(1, 19964128080), (2, 9982064040), (3, 6654709360), (4, 4991032020), (5, 3992825616), (6, 3327354680), (8, 2495516010), (10, 1996412808), (12, 1663677340), (13, 1535702160), (15, 1330941872), (16, 1247758005), (20, 998206404), (24, 831838670), (26, 767851080), (30, 665470936), (39, 511900720), (40, 499103202), (48, 415919335), (52, 383925540), (60, 332735468), (65, 307140432), (78, 255950360), (80, 249551601), (104, 191962770), (120, 166367734), (130, 153570216), (156, 127975180), (195, 102380144), (208, 95981385), (240, 83183867), (260, 76785108), (312, 63987590), (390, 51190072), (520, 38392554), (624, 31993795), (780, 25595036), (1040, 19196277), (1560, 12797518), (3120, 6398759)]