721000826

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4201}}^1$

素因数の和:4287

約数の個数: 64

約数和(自身を含む): 1423166976

約数和(自身を除く): 702166150

約数列:

[1, 2, 7, 13, 14, 23, 26, 41, 46, 82, 91, 161, 182, 287, 299, 322, 533, 574, 598, 943, 1066, 1886, 2093, 3731, 4186, 4201, 6601, 7462, 8402, 12259, 13202, 24518, 29407, 54613, 58814, 85813, 96623, 109226, 171626, 172241, 193246, 344482, 382291, 676361, 764582, 1205687, 1256099, 1352722, 2239133, 2411374, 2512198, 3961543, 4478266, 7923086, 8792693, 15673931, 17585386, 27730801, 31347862, 51500059, 55461602, 103000118, 360500413, 721000826]

約数ペア:

[(1, 721000826), (2, 360500413), (7, 103000118), (13, 55461602), (14, 51500059), (23, 31347862), (26, 27730801), (41, 17585386), (46, 15673931), (82, 8792693), (91, 7923086), (161, 4478266), (182, 3961543), (287, 2512198), (299, 2411374), (322, 2239133), (533, 1352722), (574, 1256099), (598, 1205687), (943, 764582), (1066, 676361), (1886, 382291), (2093, 344482), (3731, 193246), (4186, 172241), (4201, 171626), (6601, 109226), (7462, 96623), (8402, 85813), (12259, 58814), (13202, 54613), (24518, 29407)]