81898960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7159}}^1$

素因数の和:7196

約数の個数: 80

約数和(自身を含む): 223735680

約数和(自身を除く): 141836720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 7159, 11440, 14318, 28636, 35795, 57272, 71590, 78749, 93067, 114544, 143180, 157498, 186134, 286360, 314996, 372268, 393745, 465335, 572720, 629992, 744536, 787490, 930670, 1023737, 1259984, 1489072, 1574980, 1861340, 2047474, 3149960, 3722680, 4094948, 5118685, 6299920, 7445360, 8189896, 10237370, 16379792, 20474740, 40949480, 81898960]

約数ペア:

[(1, 81898960), (2, 40949480), (4, 20474740), (5, 16379792), (8, 10237370), (10, 8189896), (11, 7445360), (13, 6299920), (16, 5118685), (20, 4094948), (22, 3722680), (26, 3149960), (40, 2047474), (44, 1861340), (52, 1574980), (55, 1489072), (65, 1259984), (80, 1023737), (88, 930670), (104, 787490), (110, 744536), (130, 629992), (143, 572720), (176, 465335), (208, 393745), (220, 372268), (260, 314996), (286, 286360), (440, 186134), (520, 157498), (572, 143180), (715, 114544), (880, 93067), (1040, 78749), (1144, 71590), (1430, 57272), (2288, 35795), (2860, 28636), (5720, 14318), (7159, 11440)]