28626520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55051}}^1$

素因数の和:55075

約数の個数: 32

約数和(自身を含む): 69365520

約数和(自身を除く): 40739000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55051, 110102, 220204, 275255, 440408, 550510, 715663, 1101020, 1431326, 2202040, 2862652, 3578315, 5725304, 7156630, 14313260, 28626520]

約数ペア:

[(1, 28626520), (2, 14313260), (4, 7156630), (5, 5725304), (8, 3578315), (10, 2862652), (13, 2202040), (20, 1431326), (26, 1101020), (40, 715663), (52, 550510), (65, 440408), (104, 275255), (130, 220204), (260, 110102), (520, 55051)]