15961790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 31147200

約数和(自身を除く): 15185410

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 617, 995, 1234, 1990, 2587, 3085, 5174, 6170, 8021, 12935, 16042, 25870, 40105, 80210, 122783, 245566, 613915, 1227830, 1596179, 3192358, 7980895, 15961790]

約数ペア:

[(1, 15961790), (2, 7980895), (5, 3192358), (10, 1596179), (13, 1227830), (26, 613915), (65, 245566), (130, 122783), (199, 80210), (398, 40105), (617, 25870), (995, 16042), (1234, 12935), (1990, 8021), (2587, 6170), (3085, 5174)]