27987760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18413}}^1$

素因数の和:18445

約数の個数: 40

約数和(自身を含む): 68500080

約数和(自身を除く): 40512320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18413, 36826, 73652, 92065, 147304, 184130, 294608, 349847, 368260, 699694, 736520, 1399388, 1473040, 1749235, 2798776, 3498470, 5597552, 6996940, 13993880, 27987760]

約数ペア:

[(1, 27987760), (2, 13993880), (4, 6996940), (5, 5597552), (8, 3498470), (10, 2798776), (16, 1749235), (19, 1473040), (20, 1399388), (38, 736520), (40, 699694), (76, 368260), (80, 349847), (95, 294608), (152, 184130), (190, 147304), (304, 92065), (380, 73652), (760, 36826), (1520, 18413)]