28040880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{16691}}^1$

素因数の和:16714

約数の個数: 80

約数和(自身を含む): 99350784

約数和(自身を除く): 71309904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 16691, 33382, 50073, 66764, 83455, 100146, 116837, 133528, 166910, 200292, 233674, 250365, 267056, 333820, 350511, 400584, 467348, 500730, 584185, 667640, 701022, 801168, 934696, 1001460, 1168370, 1335280, 1402044, 1752555, 1869392, 2002920, 2336740, 2804088, 3505110, 4005840, 4673480, 5608176, 7010220, 9346960, 14020440, 28040880]

約数ペア:

[(1, 28040880), (2, 14020440), (3, 9346960), (4, 7010220), (5, 5608176), (6, 4673480), (7, 4005840), (8, 3505110), (10, 2804088), (12, 2336740), (14, 2002920), (15, 1869392), (16, 1752555), (20, 1402044), (21, 1335280), (24, 1168370), (28, 1001460), (30, 934696), (35, 801168), (40, 701022), (42, 667640), (48, 584185), (56, 500730), (60, 467348), (70, 400584), (80, 350511), (84, 333820), (105, 267056), (112, 250365), (120, 233674), (140, 200292), (168, 166910), (210, 133528), (240, 116837), (280, 100146), (336, 83455), (420, 66764), (560, 50073), (840, 33382), (1680, 16691)]