20131563725

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1807

約数の個数: 96

約数和(自身を含む): 31626975744

約数和(自身を除く): 11495412019

約数列:

[1, 5, 7, 13, 25, 35, 53, 65, 91, 103, 175, 265, 325, 371, 455, 515, 689, 721, 1325, 1339, 1621, 1855, 2275, 2575, 3445, 3605, 4823, 5459, 6695, 8105, 9275, 9373, 11347, 17225, 18025, 21073, 24115, 27295, 33475, 38213, 40525, 46865, 56735, 70967, 85913, 105365, 120575, 136475, 147511, 166963, 191065, 234325, 283675, 354835, 429565, 496769, 526825, 601391, 737555, 834815, 955325, 1116869, 1168741, 1774175, 2147825, 2170519, 2483845, 3006955, 3687775, 4174075, 5584345, 5843705, 7818083, 8849039, 10852595, 12419225, 15034775, 15193633, 27921725, 29218525, 39090415, 44245195, 54262975, 61943273, 75968165, 115037507, 195452075, 221225975, 309716365, 379840825, 575187535, 805262549, 1548581825, 2875937675, 4026312745, 20131563725]

約数ペア:

[(1, 20131563725), (5, 4026312745), (7, 2875937675), (13, 1548581825), (25, 805262549), (35, 575187535), (53, 379840825), (65, 309716365), (91, 221225975), (103, 195452075), (175, 115037507), (265, 75968165), (325, 61943273), (371, 54262975), (455, 44245195), (515, 39090415), (689, 29218525), (721, 27921725), (1325, 15193633), (1339, 15034775), (1621, 12419225), (1855, 10852595), (2275, 8849039), (2575, 7818083), (3445, 5843705), (3605, 5584345), (4823, 4174075), (5459, 3687775), (6695, 3006955), (8105, 2483845), (9275, 2170519), (9373, 2147825), (11347, 1774175), (17225, 1168741), (18025, 1116869), (21073, 955325), (24115, 834815), (27295, 737555), (33475, 601391), (38213, 526825), (40525, 496769), (46865, 429565), (56735, 354835), (70967, 283675), (85913, 234325), (105365, 191065), (120575, 166963), (136475, 147511)]