891390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:744

約数の個数: 32

約数和(自身を含む): 2192256

約数和(自身を除く): 1300866

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 691, 1290, 1382, 2073, 3455, 4146, 6910, 10365, 20730, 29713, 59426, 89139, 148565, 178278, 297130, 445695, 891390]

約数ペア:

[(1, 891390), (2, 445695), (3, 297130), (5, 178278), (6, 148565), (10, 89139), (15, 59426), (30, 29713), (43, 20730), (86, 10365), (129, 6910), (215, 4146), (258, 3455), (430, 2073), (645, 1382), (691, 1290)]