9880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:43

約数の個数: 32

約数和(自身を含む): 25200

約数和(自身を除く): 15320

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880]

約数ペア:

[(1, 9880), (2, 4940), (4, 2470), (5, 1976), (8, 1235), (10, 988), (13, 760), (19, 520), (20, 494), (26, 380), (38, 260), (40, 247), (52, 190), (65, 152), (76, 130), (95, 104)]