81827172

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:463

約数の個数: 120

約数和(自身を含む): 247459520

約数和(自身を除く): 165632348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 109, 126, 162, 189, 218, 252, 324, 327, 331, 378, 436, 567, 654, 662, 756, 763, 981, 993, 1134, 1308, 1324, 1526, 1962, 1986, 2268, 2289, 2317, 2943, 2979, 3052, 3924, 3972, 4578, 4634, 5886, 5958, 6867, 6951, 8829, 8937, 9156, 9268, 11772, 11916, 13734, 13902, 17658, 17874, 20601, 20853, 26811, 27468, 27804, 35316, 35748, 36079, 41202, 41706, 53622, 61803, 62559, 72158, 82404, 83412, 107244, 108237, 123606, 125118, 144316, 187677, 216474, 247212, 250236, 252553, 324711, 375354, 432948, 505106, 649422, 750708, 757659, 974133, 1010212, 1298844, 1515318, 1948266, 2272977, 2922399, 3030636, 3896532, 4545954, 5844798, 6818931, 9091908, 11689596, 13637862, 20456793, 27275724, 40913586, 81827172]

約数ペア:

[(1, 81827172), (2, 40913586), (3, 27275724), (4, 20456793), (6, 13637862), (7, 11689596), (9, 9091908), (12, 6818931), (14, 5844798), (18, 4545954), (21, 3896532), (27, 3030636), (28, 2922399), (36, 2272977), (42, 1948266), (54, 1515318), (63, 1298844), (81, 1010212), (84, 974133), (108, 757659), (109, 750708), (126, 649422), (162, 505106), (189, 432948), (218, 375354), (252, 324711), (324, 252553), (327, 250236), (331, 247212), (378, 216474), (436, 187677), (567, 144316), (654, 125118), (662, 123606), (756, 108237), (763, 107244), (981, 83412), (993, 82404), (1134, 72158), (1308, 62559), (1324, 61803), (1526, 53622), (1962, 41706), (1986, 41202), (2268, 36079), (2289, 35748), (2317, 35316), (2943, 27804), (2979, 27468), (3052, 26811), (3924, 20853), (3972, 20601), (4578, 17874), (4634, 17658), (5886, 13902), (5958, 13734), (6867, 11916), (6951, 11772), (8829, 9268), (8937, 9156)]