207838780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1\times {\mathrm{631}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 448487424

約数和(自身を除く): 240648644

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 383, 430, 631, 766, 860, 1262, 1532, 1915, 2524, 3155, 3830, 6310, 7660, 12620, 16469, 27133, 32938, 54266, 65876, 82345, 108532, 135665, 164690, 241673, 271330, 329380, 483346, 542660, 966692, 1208365, 2416730, 4833460, 10391939, 20783878, 41567756, 51959695, 103919390, 207838780]

約数ペア:

[(1, 207838780), (2, 103919390), (4, 51959695), (5, 41567756), (10, 20783878), (20, 10391939), (43, 4833460), (86, 2416730), (172, 1208365), (215, 966692), (383, 542660), (430, 483346), (631, 329380), (766, 271330), (860, 241673), (1262, 164690), (1532, 135665), (1915, 108532), (2524, 82345), (3155, 65876), (3830, 54266), (6310, 32938), (7660, 27133), (12620, 16469)]