81899760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2687}}^1$

素因数の和:2830

約数の個数: 80

約数和(自身を含む): 255983616

約数和(自身を除く): 174083856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2032, 2540, 2687, 3048, 3810, 5080, 5374, 6096, 7620, 8061, 10160, 10748, 13435, 15240, 16122, 21496, 26870, 30480, 32244, 40305, 42992, 53740, 64488, 80610, 107480, 128976, 161220, 214960, 322440, 341249, 644880, 682498, 1023747, 1364996, 1706245, 2047494, 2729992, 3412490, 4094988, 5118735, 5459984, 6824980, 8189976, 10237470, 13649960, 16379952, 20474940, 27299920, 40949880, 81899760]

約数ペア:

[(1, 81899760), (2, 40949880), (3, 27299920), (4, 20474940), (5, 16379952), (6, 13649960), (8, 10237470), (10, 8189976), (12, 6824980), (15, 5459984), (16, 5118735), (20, 4094988), (24, 3412490), (30, 2729992), (40, 2047494), (48, 1706245), (60, 1364996), (80, 1023747), (120, 682498), (127, 644880), (240, 341249), (254, 322440), (381, 214960), (508, 161220), (635, 128976), (762, 107480), (1016, 80610), (1270, 64488), (1524, 53740), (1905, 42992), (2032, 40305), (2540, 32244), (2687, 30480), (3048, 26870), (3810, 21496), (5080, 16122), (5374, 15240), (6096, 13435), (7620, 10748), (8061, 10160)]