28874280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3389}}^1$

素因数の和:3474

約数の個数: 64

約数和(自身を含む): 87868800

約数和(自身を除く): 58994520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 3389, 4260, 6778, 8520, 10167, 13556, 16945, 20334, 27112, 33890, 40668, 50835, 67780, 81336, 101670, 135560, 203340, 240619, 406680, 481238, 721857, 962476, 1203095, 1443714, 1924952, 2406190, 2887428, 3609285, 4812380, 5774856, 7218570, 9624760, 14437140, 28874280]

約数ペア:

[(1, 28874280), (2, 14437140), (3, 9624760), (4, 7218570), (5, 5774856), (6, 4812380), (8, 3609285), (10, 2887428), (12, 2406190), (15, 1924952), (20, 1443714), (24, 1203095), (30, 962476), (40, 721857), (60, 481238), (71, 406680), (120, 240619), (142, 203340), (213, 135560), (284, 101670), (355, 81336), (426, 67780), (568, 50835), (710, 40668), (852, 33890), (1065, 27112), (1420, 20334), (1704, 16945), (2130, 13556), (2840, 10167), (3389, 8520), (4260, 6778)]