84681680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{13399}}^1$

素因数の和:13491

約数の個数: 40

約数和(自身を含む): 199392000

約数和(自身を除く): 114710320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 13399, 26798, 53596, 66995, 107192, 133990, 214384, 267980, 535960, 1058521, 1071920, 2117042, 4234084, 5292605, 8468168, 10585210, 16936336, 21170420, 42340840, 84681680]

約数ペア:

[(1, 84681680), (2, 42340840), (4, 21170420), (5, 16936336), (8, 10585210), (10, 8468168), (16, 5292605), (20, 4234084), (40, 2117042), (79, 1071920), (80, 1058521), (158, 535960), (316, 267980), (395, 214384), (632, 133990), (790, 107192), (1264, 66995), (1580, 53596), (3160, 26798), (6320, 13399)]