2891525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 4666368

約数和(自身を除く): 1774843

約数列:

[1, 5, 7, 13, 25, 31, 35, 41, 65, 91, 155, 175, 205, 217, 287, 325, 403, 455, 533, 775, 1025, 1085, 1271, 1435, 2015, 2275, 2665, 2821, 3731, 5425, 6355, 7175, 8897, 10075, 13325, 14105, 16523, 18655, 31775, 44485, 70525, 82615, 93275, 115661, 222425, 413075, 578305, 2891525]

約数ペア:

[(1, 2891525), (5, 578305), (7, 413075), (13, 222425), (25, 115661), (31, 93275), (35, 82615), (41, 70525), (65, 44485), (91, 31775), (155, 18655), (175, 16523), (205, 14105), (217, 13325), (287, 10075), (325, 8897), (403, 7175), (455, 6355), (533, 5425), (775, 3731), (1025, 2821), (1085, 2665), (1271, 2275), (1435, 2015)]