81545200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 120

約数和(自身を含む): 219200256

約数和(自身を除く): 137655056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 43, 44, 50, 55, 80, 86, 88, 100, 110, 172, 176, 200, 215, 220, 275, 344, 400, 430, 431, 440, 473, 550, 688, 860, 862, 880, 946, 1075, 1100, 1720, 1724, 1892, 2150, 2155, 2200, 2365, 3440, 3448, 3784, 4300, 4310, 4400, 4730, 4741, 6896, 7568, 8600, 8620, 9460, 9482, 10775, 11825, 17200, 17240, 18533, 18920, 18964, 21550, 23650, 23705, 34480, 37066, 37840, 37928, 43100, 47300, 47410, 74132, 75856, 86200, 92665, 94600, 94820, 118525, 148264, 172400, 185330, 189200, 189640, 203863, 237050, 296528, 370660, 379280, 407726, 463325, 474100, 741320, 815452, 926650, 948200, 1019315, 1482640, 1630904, 1853300, 1896400, 2038630, 3261808, 3706600, 4077260, 5096575, 7413200, 8154520, 10193150, 16309040, 20386300, 40772600, 81545200]

約数ペア:

[(1, 81545200), (2, 40772600), (4, 20386300), (5, 16309040), (8, 10193150), (10, 8154520), (11, 7413200), (16, 5096575), (20, 4077260), (22, 3706600), (25, 3261808), (40, 2038630), (43, 1896400), (44, 1853300), (50, 1630904), (55, 1482640), (80, 1019315), (86, 948200), (88, 926650), (100, 815452), (110, 741320), (172, 474100), (176, 463325), (200, 407726), (215, 379280), (220, 370660), (275, 296528), (344, 237050), (400, 203863), (430, 189640), (431, 189200), (440, 185330), (473, 172400), (550, 148264), (688, 118525), (860, 94820), (862, 94600), (880, 92665), (946, 86200), (1075, 75856), (1100, 74132), (1720, 47410), (1724, 47300), (1892, 43100), (2150, 37928), (2155, 37840), (2200, 37066), (2365, 34480), (3440, 23705), (3448, 23650), (3784, 21550), (4300, 18964), (4310, 18920), (4400, 18533), (4730, 17240), (4741, 17200), (6896, 11825), (7568, 10775), (8600, 9482), (8620, 9460)]