161681988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:617

約数の個数: 96

約数和(自身を含む): 426496000

約数和(自身を除く): 264814012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 67, 78, 93, 124, 134, 156, 186, 201, 268, 372, 402, 403, 499, 804, 806, 871, 998, 1209, 1497, 1612, 1742, 1996, 2077, 2418, 2613, 2994, 3484, 4154, 4836, 5226, 5988, 6231, 6487, 8308, 10452, 12462, 12974, 15469, 19461, 24924, 25948, 27001, 30938, 33433, 38922, 46407, 54002, 61876, 66866, 77844, 81003, 92814, 100299, 108004, 133732, 162006, 185628, 200598, 201097, 324012, 401196, 402194, 434629, 603291, 804388, 869258, 1036423, 1206582, 1303887, 1738516, 2072846, 2413164, 2607774, 3109269, 4145692, 5215548, 6218538, 12437076, 13473499, 26946998, 40420497, 53893996, 80840994, 161681988]

約数ペア:

[(1, 161681988), (2, 80840994), (3, 53893996), (4, 40420497), (6, 26946998), (12, 13473499), (13, 12437076), (26, 6218538), (31, 5215548), (39, 4145692), (52, 3109269), (62, 2607774), (67, 2413164), (78, 2072846), (93, 1738516), (124, 1303887), (134, 1206582), (156, 1036423), (186, 869258), (201, 804388), (268, 603291), (372, 434629), (402, 402194), (403, 401196), (499, 324012), (804, 201097), (806, 200598), (871, 185628), (998, 162006), (1209, 133732), (1497, 108004), (1612, 100299), (1742, 92814), (1996, 81003), (2077, 77844), (2418, 66866), (2613, 61876), (2994, 54002), (3484, 46407), (4154, 38922), (4836, 33433), (5226, 30938), (5988, 27001), (6231, 25948), (6487, 24924), (8308, 19461), (10452, 15469), (12462, 12974)]