128419740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{2521}}^1$

素因数の和:2819

約数の個数: 72

約数和(自身を含む): 391071408

約数和(自身を除く): 262651668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 566, 849, 1132, 1415, 1698, 2521, 2547, 2830, 3396, 4245, 5042, 5094, 5660, 7563, 8490, 10084, 10188, 12605, 12735, 15126, 16980, 22689, 25210, 25470, 30252, 37815, 45378, 50420, 50940, 75630, 90756, 113445, 151260, 226890, 453780, 713443, 1426886, 2140329, 2853772, 3567215, 4280658, 6420987, 7134430, 8561316, 10701645, 12841974, 14268860, 21403290, 25683948, 32104935, 42806580, 64209870, 128419740]

約数ペア:

[(1, 128419740), (2, 64209870), (3, 42806580), (4, 32104935), (5, 25683948), (6, 21403290), (9, 14268860), (10, 12841974), (12, 10701645), (15, 8561316), (18, 7134430), (20, 6420987), (30, 4280658), (36, 3567215), (45, 2853772), (60, 2140329), (90, 1426886), (180, 713443), (283, 453780), (566, 226890), (849, 151260), (1132, 113445), (1415, 90756), (1698, 75630), (2521, 50940), (2547, 50420), (2830, 45378), (3396, 37815), (4245, 30252), (5042, 25470), (5094, 25210), (5660, 22689), (7563, 16980), (8490, 15126), (10084, 12735), (10188, 12605)]