1999257988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{853}}^1$

素因数の和:1061

約数の個数: 96

約数和(自身を含む): 4435006464

約数和(自身を除く): 2435748476

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 52, 91, 94, 137, 182, 188, 274, 329, 364, 548, 611, 658, 853, 959, 1222, 1316, 1706, 1781, 1918, 2444, 3412, 3562, 3836, 4277, 5971, 6439, 7124, 8554, 11089, 11942, 12467, 12878, 17108, 22178, 23884, 24934, 25756, 40091, 44356, 45073, 49868, 77623, 80182, 83707, 90146, 116861, 155246, 160364, 167414, 180292, 233722, 280637, 310492, 334828, 467444, 521183, 561274, 585949, 818027, 1042366, 1122548, 1171898, 1519193, 1636054, 2084732, 2343796, 3038386, 3272108, 3648281, 5492467, 6076772, 7296562, 10634351, 10984934, 14593124, 21268702, 21969868, 38447269, 42537404, 71402071, 76894538, 142804142, 153789076, 285608284, 499814497, 999628994, 1999257988]

約数ペア:

[(1, 1999257988), (2, 999628994), (4, 499814497), (7, 285608284), (13, 153789076), (14, 142804142), (26, 76894538), (28, 71402071), (47, 42537404), (52, 38447269), (91, 21969868), (94, 21268702), (137, 14593124), (182, 10984934), (188, 10634351), (274, 7296562), (329, 6076772), (364, 5492467), (548, 3648281), (611, 3272108), (658, 3038386), (853, 2343796), (959, 2084732), (1222, 1636054), (1316, 1519193), (1706, 1171898), (1781, 1122548), (1918, 1042366), (2444, 818027), (3412, 585949), (3562, 561274), (3836, 521183), (4277, 467444), (5971, 334828), (6439, 310492), (7124, 280637), (8554, 233722), (11089, 180292), (11942, 167414), (12467, 160364), (12878, 155246), (17108, 116861), (22178, 90146), (23884, 83707), (24934, 80182), (25756, 77623), (40091, 49868), (44356, 45073)]