18138490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4639}}^1$

素因数の和:4686

約数の個数: 32

約数和(自身を含む): 36080640

約数和(自身を除く): 17942150

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 4639, 9278, 23195, 46390, 78863, 106697, 157726, 213394, 394315, 533485, 788630, 1066970, 1813849, 3627698, 9069245, 18138490]

約数ペア:

[(1, 18138490), (2, 9069245), (5, 3627698), (10, 1813849), (17, 1066970), (23, 788630), (34, 533485), (46, 394315), (85, 213394), (115, 157726), (170, 106697), (230, 78863), (391, 46390), (782, 23195), (1955, 9278), (3910, 4639)]