15347745

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 31680000

約数和(自身を除く): 16332255

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 109, 135, 149, 189, 315, 327, 447, 545, 745, 763, 945, 981, 1043, 1341, 1635, 2235, 2289, 2943, 3129, 3815, 4023, 4905, 5215, 6705, 6867, 9387, 11445, 14715, 15645, 16241, 20115, 20601, 28161, 34335, 46935, 48723, 81205, 103005, 113687, 140805, 146169, 243615, 341061, 438507, 568435, 730845, 1023183, 1705305, 2192535, 3069549, 5115915, 15347745]

約数ペア:

[(1, 15347745), (3, 5115915), (5, 3069549), (7, 2192535), (9, 1705305), (15, 1023183), (21, 730845), (27, 568435), (35, 438507), (45, 341061), (63, 243615), (105, 146169), (109, 140805), (135, 113687), (149, 103005), (189, 81205), (315, 48723), (327, 46935), (447, 34335), (545, 28161), (745, 20601), (763, 20115), (945, 16241), (981, 15645), (1043, 14715), (1341, 11445), (1635, 9387), (2235, 6867), (2289, 6705), (2943, 5215), (3129, 4905), (3815, 4023)]