81445672

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1346

約数の個数: 64

約数和(自身を含む): 192297600

約数和(自身を除く): 110851928

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 109, 154, 218, 308, 436, 616, 763, 872, 1199, 1213, 1526, 2398, 2426, 3052, 4796, 4852, 6104, 8393, 8491, 9592, 9704, 13343, 16786, 16982, 26686, 33572, 33964, 53372, 67144, 67928, 93401, 106744, 132217, 186802, 264434, 373604, 528868, 747208, 925519, 1057736, 1454387, 1851038, 2908774, 3702076, 5817548, 7404152, 10180709, 11635096, 20361418, 40722836, 81445672]

約数ペア:

[(1, 81445672), (2, 40722836), (4, 20361418), (7, 11635096), (8, 10180709), (11, 7404152), (14, 5817548), (22, 3702076), (28, 2908774), (44, 1851038), (56, 1454387), (77, 1057736), (88, 925519), (109, 747208), (154, 528868), (218, 373604), (308, 264434), (436, 186802), (616, 132217), (763, 106744), (872, 93401), (1199, 67928), (1213, 67144), (1526, 53372), (2398, 33964), (2426, 33572), (3052, 26686), (4796, 16982), (4852, 16786), (6104, 13343), (8393, 9704), (8491, 9592)]