222748040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{1087}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 517017600

約数和(自身を除く): 294269560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 109, 188, 218, 235, 376, 436, 470, 545, 872, 940, 1087, 1090, 1880, 2174, 2180, 4348, 4360, 5123, 5435, 8696, 10246, 10870, 20492, 21740, 25615, 40984, 43480, 51089, 51230, 102178, 102460, 118483, 204356, 204920, 236966, 255445, 408712, 473932, 510890, 592415, 947864, 1021780, 1184830, 2043560, 2369660, 4739320, 5568701, 11137402, 22274804, 27843505, 44549608, 55687010, 111374020, 222748040]

約数ペア:

[(1, 222748040), (2, 111374020), (4, 55687010), (5, 44549608), (8, 27843505), (10, 22274804), (20, 11137402), (40, 5568701), (47, 4739320), (94, 2369660), (109, 2043560), (188, 1184830), (218, 1021780), (235, 947864), (376, 592415), (436, 510890), (470, 473932), (545, 408712), (872, 255445), (940, 236966), (1087, 204920), (1090, 204356), (1880, 118483), (2174, 102460), (2180, 102178), (4348, 51230), (4360, 51089), (5123, 43480), (5435, 40984), (8696, 25615), (10246, 21740), (10870, 20492)]