81438960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11701}}^1$

素因数の和:11746

約数の個数: 80

約数和(自身を含む): 261188640

約数和(自身を除く): 179749680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3480, 6960, 11701, 23402, 35103, 46804, 58505, 70206, 93608, 117010, 140412, 175515, 187216, 234020, 280824, 339329, 351030, 468040, 561648, 678658, 702060, 936080, 1017987, 1357316, 1404120, 1696645, 2035974, 2714632, 2808240, 3393290, 4071948, 5089935, 5429264, 6786580, 8143896, 10179870, 13573160, 16287792, 20359740, 27146320, 40719480, 81438960]

約数ペア:

[(1, 81438960), (2, 40719480), (3, 27146320), (4, 20359740), (5, 16287792), (6, 13573160), (8, 10179870), (10, 8143896), (12, 6786580), (15, 5429264), (16, 5089935), (20, 4071948), (24, 3393290), (29, 2808240), (30, 2714632), (40, 2035974), (48, 1696645), (58, 1404120), (60, 1357316), (80, 1017987), (87, 936080), (116, 702060), (120, 678658), (145, 561648), (174, 468040), (232, 351030), (240, 339329), (290, 280824), (348, 234020), (435, 187216), (464, 175515), (580, 140412), (696, 117010), (870, 93608), (1160, 70206), (1392, 58505), (1740, 46804), (2320, 35103), (3480, 23402), (6960, 11701)]