1213420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{359}}^1$

素因数の和:394

約数の個数: 36

約数和(自身を含む): 2766960

約数和(自身を除く): 1553540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 359, 676, 718, 845, 1436, 1690, 1795, 3380, 3590, 4667, 7180, 9334, 18668, 23335, 46670, 60671, 93340, 121342, 242684, 303355, 606710, 1213420]

約数ペア:

[(1, 1213420), (2, 606710), (4, 303355), (5, 242684), (10, 121342), (13, 93340), (20, 60671), (26, 46670), (52, 23335), (65, 18668), (130, 9334), (169, 7180), (260, 4667), (338, 3590), (359, 3380), (676, 1795), (718, 1690), (845, 1436)]