7812840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 27371520

約数和(自身を除く): 19558680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 131, 140, 142, 168, 210, 213, 262, 280, 284, 355, 393, 420, 426, 497, 524, 568, 655, 710, 786, 840, 852, 917, 994, 1048, 1065, 1310, 1420, 1491, 1572, 1704, 1834, 1965, 1988, 2130, 2485, 2620, 2751, 2840, 2982, 3144, 3668, 3930, 3976, 4260, 4585, 4970, 5240, 5502, 5964, 7336, 7455, 7860, 8520, 9170, 9301, 9940, 11004, 11928, 13755, 14910, 15720, 18340, 18602, 19880, 22008, 27510, 27903, 29820, 36680, 37204, 46505, 55020, 55806, 59640, 65107, 74408, 93010, 110040, 111612, 130214, 139515, 186020, 195321, 223224, 260428, 279030, 325535, 372040, 390642, 520856, 558060, 651070, 781284, 976605, 1116120, 1302140, 1562568, 1953210, 2604280, 3906420, 7812840]

約数ペア:

[(1, 7812840), (2, 3906420), (3, 2604280), (4, 1953210), (5, 1562568), (6, 1302140), (7, 1116120), (8, 976605), (10, 781284), (12, 651070), (14, 558060), (15, 520856), (20, 390642), (21, 372040), (24, 325535), (28, 279030), (30, 260428), (35, 223224), (40, 195321), (42, 186020), (56, 139515), (60, 130214), (70, 111612), (71, 110040), (84, 93010), (105, 74408), (120, 65107), (131, 59640), (140, 55806), (142, 55020), (168, 46505), (210, 37204), (213, 36680), (262, 29820), (280, 27903), (284, 27510), (355, 22008), (393, 19880), (420, 18602), (426, 18340), (497, 15720), (524, 14910), (568, 13755), (655, 11928), (710, 11004), (786, 9940), (840, 9301), (852, 9170), (917, 8520), (994, 7860), (1048, 7455), (1065, 7336), (1310, 5964), (1420, 5502), (1491, 5240), (1572, 4970), (1704, 4585), (1834, 4260), (1965, 3976), (1988, 3930), (2130, 3668), (2485, 3144), (2620, 2982), (2751, 2840)]