220155740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17669}}^1$

素因数の和:17774

約数の個数: 48

約数和(自身を含む): 534340800

約数和(自身を除く): 314185060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 17669, 35338, 70676, 88345, 123683, 176690, 247366, 353380, 494732, 618415, 1236830, 1572541, 2473660, 3145082, 6290164, 7862705, 11007787, 15725410, 22015574, 31450820, 44031148, 55038935, 110077870, 220155740]

約数ペア:

[(1, 220155740), (2, 110077870), (4, 55038935), (5, 44031148), (7, 31450820), (10, 22015574), (14, 15725410), (20, 11007787), (28, 7862705), (35, 6290164), (70, 3145082), (89, 2473660), (140, 1572541), (178, 1236830), (356, 618415), (445, 494732), (623, 353380), (890, 247366), (1246, 176690), (1780, 123683), (2492, 88345), (3115, 70676), (6230, 35338), (12460, 17669)]