28412560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:496

約数の個数: 80

約数和(自身を含む): 73120320

約数和(自身を除く): 44707760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 83, 88, 110, 166, 176, 220, 332, 389, 415, 440, 664, 778, 830, 880, 913, 1328, 1556, 1660, 1826, 1945, 3112, 3320, 3652, 3890, 4279, 4565, 6224, 6640, 7304, 7780, 8558, 9130, 14608, 15560, 17116, 18260, 21395, 31120, 32287, 34232, 36520, 42790, 64574, 68464, 73040, 85580, 129148, 161435, 171160, 258296, 322870, 342320, 355157, 516592, 645740, 710314, 1291480, 1420628, 1775785, 2582960, 2841256, 3551570, 5682512, 7103140, 14206280, 28412560]

約数ペア:

[(1, 28412560), (2, 14206280), (4, 7103140), (5, 5682512), (8, 3551570), (10, 2841256), (11, 2582960), (16, 1775785), (20, 1420628), (22, 1291480), (40, 710314), (44, 645740), (55, 516592), (80, 355157), (83, 342320), (88, 322870), (110, 258296), (166, 171160), (176, 161435), (220, 129148), (332, 85580), (389, 73040), (415, 68464), (440, 64574), (664, 42790), (778, 36520), (830, 34232), (880, 32287), (913, 31120), (1328, 21395), (1556, 18260), (1660, 17116), (1826, 15560), (1945, 14608), (3112, 9130), (3320, 8558), (3652, 7780), (3890, 7304), (4279, 6640), (4565, 6224)]