1625715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 3476928

約数和(自身を除く): 1851213

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 397, 455, 585, 819, 1191, 1365, 1985, 2779, 3573, 4095, 5161, 5955, 8337, 13895, 15483, 17865, 25011, 25805, 36127, 41685, 46449, 77415, 108381, 125055, 180635, 232245, 325143, 541905, 1625715]

約数ペア:

[(1, 1625715), (3, 541905), (5, 325143), (7, 232245), (9, 180635), (13, 125055), (15, 108381), (21, 77415), (35, 46449), (39, 41685), (45, 36127), (63, 25805), (65, 25011), (91, 17865), (105, 15483), (117, 13895), (195, 8337), (273, 5955), (315, 5161), (397, 4095), (455, 3573), (585, 2779), (819, 1985), (1191, 1365)]