66106660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{389}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 144471600

約数和(自身を除く): 78364940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 293, 389, 580, 586, 778, 1172, 1465, 1556, 1945, 2930, 3890, 5860, 7780, 8497, 11281, 16994, 22562, 33988, 42485, 45124, 56405, 84970, 112810, 113977, 169940, 225620, 227954, 455908, 569885, 1139770, 2279540, 3305333, 6610666, 13221332, 16526665, 33053330, 66106660]

約数ペア:

[(1, 66106660), (2, 33053330), (4, 16526665), (5, 13221332), (10, 6610666), (20, 3305333), (29, 2279540), (58, 1139770), (116, 569885), (145, 455908), (290, 227954), (293, 225620), (389, 169940), (580, 113977), (586, 112810), (778, 84970), (1172, 56405), (1465, 45124), (1556, 42485), (1945, 33988), (2930, 22562), (3890, 16994), (5860, 11281), (7780, 8497)]