28659708

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 92601600

約数和(自身を除く): 63941892

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 49, 63, 66, 77, 84, 98, 99, 126, 132, 147, 154, 196, 198, 211, 231, 252, 294, 308, 343, 396, 422, 441, 462, 539, 588, 633, 686, 693, 844, 882, 924, 1029, 1078, 1266, 1372, 1386, 1477, 1617, 1764, 1899, 2058, 2156, 2321, 2532, 2772, 2954, 3087, 3234, 3773, 3798, 4116, 4431, 4642, 4851, 5908, 6174, 6468, 6963, 7546, 7596, 8862, 9284, 9702, 10339, 11319, 12348, 13293, 13926, 15092, 16247, 17724, 19404, 20678, 20889, 22638, 26586, 27852, 31017, 32494, 33957, 41356, 41778, 45276, 48741, 53172, 62034, 64988, 67914, 72373, 83556, 93051, 97482, 113729, 124068, 135828, 144746, 146223, 186102, 194964, 217119, 227458, 289492, 292446, 341187, 372204, 434238, 454916, 584892, 651357, 682374, 796103, 868476, 1023561, 1302714, 1364748, 1592206, 2047122, 2388309, 2605428, 3184412, 4094244, 4776618, 7164927, 9553236, 14329854, 28659708]

約数ペア:

[(1, 28659708), (2, 14329854), (3, 9553236), (4, 7164927), (6, 4776618), (7, 4094244), (9, 3184412), (11, 2605428), (12, 2388309), (14, 2047122), (18, 1592206), (21, 1364748), (22, 1302714), (28, 1023561), (33, 868476), (36, 796103), (42, 682374), (44, 651357), (49, 584892), (63, 454916), (66, 434238), (77, 372204), (84, 341187), (98, 292446), (99, 289492), (126, 227458), (132, 217119), (147, 194964), (154, 186102), (196, 146223), (198, 144746), (211, 135828), (231, 124068), (252, 113729), (294, 97482), (308, 93051), (343, 83556), (396, 72373), (422, 67914), (441, 64988), (462, 62034), (539, 53172), (588, 48741), (633, 45276), (686, 41778), (693, 41356), (844, 33957), (882, 32494), (924, 31017), (1029, 27852), (1078, 26586), (1266, 22638), (1372, 20889), (1386, 20678), (1477, 19404), (1617, 17724), (1764, 16247), (1899, 15092), (2058, 13926), (2156, 13293), (2321, 12348), (2532, 11319), (2772, 10339), (2954, 9702), (3087, 9284), (3234, 8862), (3773, 7596), (3798, 7546), (4116, 6963), (4431, 6468), (4642, 6174), (4851, 5908)]