1640706249

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{313}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 2777483232

約数和(自身を除く): 1136776983

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 211, 273, 313, 507, 633, 637, 939, 1183, 1477, 1911, 2191, 2743, 3549, 4069, 4431, 6573, 8229, 8281, 10339, 12207, 15337, 19201, 24843, 28483, 31017, 35659, 46011, 52897, 57603, 66043, 85449, 106977, 134407, 158691, 198129, 199381, 249613, 370279, 403221, 462301, 598143, 748839, 858559, 1110837, 1386903, 1747291, 2575677, 2591953, 3236107, 5241873, 6009913, 7775859, 9708321, 11161267, 18029739, 33483801, 42069391, 78128869, 126208173, 234386607, 546902083, 1640706249]

約数ペア:

[(1, 1640706249), (3, 546902083), (7, 234386607), (13, 126208173), (21, 78128869), (39, 42069391), (49, 33483801), (91, 18029739), (147, 11161267), (169, 9708321), (211, 7775859), (273, 6009913), (313, 5241873), (507, 3236107), (633, 2591953), (637, 2575677), (939, 1747291), (1183, 1386903), (1477, 1110837), (1911, 858559), (2191, 748839), (2743, 598143), (3549, 462301), (4069, 403221), (4431, 370279), (6573, 249613), (8229, 199381), (8281, 198129), (10339, 158691), (12207, 134407), (15337, 106977), (19201, 85449), (24843, 66043), (28483, 57603), (31017, 52897), (35659, 46011)]