7789990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1933}}^1$

素因数の和:1984

約数の個数: 32

約数和(自身を含む): 15595776

約数和(自身を除く): 7805786

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 1933, 2015, 3866, 4030, 9665, 19330, 25129, 50258, 59923, 119846, 125645, 251290, 299615, 599230, 778999, 1557998, 3894995, 7789990]

約数ペア:

[(1, 7789990), (2, 3894995), (5, 1557998), (10, 778999), (13, 599230), (26, 299615), (31, 251290), (62, 125645), (65, 119846), (130, 59923), (155, 50258), (310, 25129), (403, 19330), (806, 9665), (1933, 4030), (2015, 3866)]