20695792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 46247040

約数和(自身を除く): 25551248

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 47, 52, 58, 73, 94, 104, 116, 146, 188, 208, 232, 292, 376, 377, 464, 584, 611, 752, 754, 949, 1168, 1222, 1363, 1508, 1898, 2117, 2444, 2726, 3016, 3431, 3796, 4234, 4888, 5452, 6032, 6862, 7592, 8468, 9776, 10904, 13724, 15184, 16936, 17719, 21808, 27448, 27521, 33872, 35438, 44603, 54896, 55042, 70876, 89206, 99499, 110084, 141752, 178412, 198998, 220168, 283504, 356824, 397996, 440336, 713648, 795992, 1293487, 1591984, 2586974, 5173948, 10347896, 20695792]

約数ペア:

[(1, 20695792), (2, 10347896), (4, 5173948), (8, 2586974), (13, 1591984), (16, 1293487), (26, 795992), (29, 713648), (47, 440336), (52, 397996), (58, 356824), (73, 283504), (94, 220168), (104, 198998), (116, 178412), (146, 141752), (188, 110084), (208, 99499), (232, 89206), (292, 70876), (376, 55042), (377, 54896), (464, 44603), (584, 35438), (611, 33872), (752, 27521), (754, 27448), (949, 21808), (1168, 17719), (1222, 16936), (1363, 15184), (1508, 13724), (1898, 10904), (2117, 9776), (2444, 8468), (2726, 7592), (3016, 6862), (3431, 6032), (3796, 5452), (4234, 4888)]