15579980

素因数分解:

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

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 36390144

約数和(自身を除く): 20810164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 1933, 2015, 3866, 4030, 7732, 8060, 9665, 19330, 25129, 38660, 50258, 59923, 100516, 119846, 125645, 239692, 251290, 299615, 502580, 599230, 778999, 1198460, 1557998, 3115996, 3894995, 7789990, 15579980]

約数ペア:

[(1, 15579980), (2, 7789990), (4, 3894995), (5, 3115996), (10, 1557998), (13, 1198460), (20, 778999), (26, 599230), (31, 502580), (52, 299615), (62, 251290), (65, 239692), (124, 125645), (130, 119846), (155, 100516), (260, 59923), (310, 50258), (403, 38660), (620, 25129), (806, 19330), (1612, 9665), (1933, 8060), (2015, 7732), (3866, 4030)]