15780440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30347}}^1$

素因数の和:30371

約数の個数: 32

約数和(自身を含む): 38238480

約数和(自身を除く): 22458040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 30347, 60694, 121388, 151735, 242776, 303470, 394511, 606940, 789022, 1213880, 1578044, 1972555, 3156088, 3945110, 7890220, 15780440]

約数ペア:

[(1, 15780440), (2, 7890220), (4, 3945110), (5, 3156088), (8, 1972555), (10, 1578044), (13, 1213880), (20, 789022), (26, 606940), (40, 394511), (52, 303470), (65, 242776), (104, 151735), (130, 121388), (260, 60694), (520, 30347)]