19708620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7639}}^1$

素因数の和:7694

約数の個数: 48

約数和(自身を含む): 56474880

約数和(自身を除く): 36766260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7639, 15278, 22917, 30556, 38195, 45834, 76390, 91668, 114585, 152780, 229170, 328477, 458340, 656954, 985431, 1313908, 1642385, 1970862, 3284770, 3941724, 4927155, 6569540, 9854310, 19708620]

約数ペア:

[(1, 19708620), (2, 9854310), (3, 6569540), (4, 4927155), (5, 3941724), (6, 3284770), (10, 1970862), (12, 1642385), (15, 1313908), (20, 985431), (30, 656954), (43, 458340), (60, 328477), (86, 229170), (129, 152780), (172, 114585), (215, 91668), (258, 76390), (430, 45834), (516, 38195), (645, 30556), (860, 22917), (1290, 15278), (2580, 7639)]