81172390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1193

約数の個数: 48

約数和(自身を含む): 162038448

約数和(自身を除く): 80866058

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 338, 430, 559, 845, 1117, 1118, 1690, 2234, 2795, 5585, 5590, 7267, 11170, 14521, 14534, 29042, 36335, 48031, 72605, 72670, 96062, 145210, 188773, 240155, 377546, 480310, 624403, 943865, 1248806, 1887730, 3122015, 6244030, 8117239, 16234478, 40586195, 81172390]

約数ペア:

[(1, 81172390), (2, 40586195), (5, 16234478), (10, 8117239), (13, 6244030), (26, 3122015), (43, 1887730), (65, 1248806), (86, 943865), (130, 624403), (169, 480310), (215, 377546), (338, 240155), (430, 188773), (559, 145210), (845, 96062), (1117, 72670), (1118, 72605), (1690, 48031), (2234, 36335), (2795, 29042), (5585, 14534), (5590, 14521), (7267, 11170)]