90242680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{205097}}^1$

素因数の和:205119

約数の個数: 32

約数和(自身を含む): 221505840

約数和(自身を除く): 131263160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 205097, 410194, 820388, 1025485, 1640776, 2050970, 2256067, 4101940, 4512134, 8203880, 9024268, 11280335, 18048536, 22560670, 45121340, 90242680]

約数ペア:

[(1, 90242680), (2, 45121340), (4, 22560670), (5, 18048536), (8, 11280335), (10, 9024268), (11, 8203880), (20, 4512134), (22, 4101940), (40, 2256067), (44, 2050970), (55, 1640776), (88, 1025485), (110, 820388), (220, 410194), (440, 205097)]