90280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 32

約数和(自身を含む): 212040

約数和(自身を除く): 121760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 370, 488, 610, 740, 1220, 1480, 2257, 2440, 4514, 9028, 11285, 18056, 22570, 45140, 90280]

約数ペア:

[(1, 90280), (2, 45140), (4, 22570), (5, 18056), (8, 11285), (10, 9028), (20, 4514), (37, 2440), (40, 2257), (61, 1480), (74, 1220), (122, 740), (148, 610), (185, 488), (244, 370), (296, 305)]