21739440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 67852800

約数和(自身を除く): 46113360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 379, 478, 717, 758, 956, 1137, 1195, 1434, 1516, 1895, 1912, 2274, 2390, 2868, 3032, 3585, 3790, 3824, 4548, 4780, 5685, 5736, 6064, 7170, 7580, 9096, 9560, 11370, 11472, 14340, 15160, 18192, 19120, 22740, 28680, 30320, 45480, 57360, 90581, 90960, 181162, 271743, 362324, 452905, 543486, 724648, 905810, 1086972, 1358715, 1449296, 1811620, 2173944, 2717430, 3623240, 4347888, 5434860, 7246480, 10869720, 21739440]

約数ペア:

[(1, 21739440), (2, 10869720), (3, 7246480), (4, 5434860), (5, 4347888), (6, 3623240), (8, 2717430), (10, 2173944), (12, 1811620), (15, 1449296), (16, 1358715), (20, 1086972), (24, 905810), (30, 724648), (40, 543486), (48, 452905), (60, 362324), (80, 271743), (120, 181162), (239, 90960), (240, 90581), (379, 57360), (478, 45480), (717, 30320), (758, 28680), (956, 22740), (1137, 19120), (1195, 18192), (1434, 15160), (1516, 14340), (1895, 11472), (1912, 11370), (2274, 9560), (2390, 9096), (2868, 7580), (3032, 7170), (3585, 6064), (3790, 5736), (3824, 5685), (4548, 4780)]