28250684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 64294272

約数和(自身を除く): 36043588

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 67, 74, 77, 134, 148, 154, 259, 268, 308, 407, 469, 518, 737, 814, 938, 1036, 1369, 1474, 1628, 1876, 2479, 2738, 2849, 2948, 4958, 5159, 5476, 5698, 9583, 9916, 10318, 11396, 15059, 17353, 19166, 20636, 27269, 30118, 34706, 38332, 54538, 60236, 69412, 91723, 105413, 109076, 183446, 190883, 210826, 366892, 381766, 421652, 642061, 763532, 1008953, 1284122, 2017906, 2568244, 4035812, 7062671, 14125342, 28250684]

約数ペア:

[(1, 28250684), (2, 14125342), (4, 7062671), (7, 4035812), (11, 2568244), (14, 2017906), (22, 1284122), (28, 1008953), (37, 763532), (44, 642061), (67, 421652), (74, 381766), (77, 366892), (134, 210826), (148, 190883), (154, 183446), (259, 109076), (268, 105413), (308, 91723), (407, 69412), (469, 60236), (518, 54538), (737, 38332), (814, 34706), (938, 30118), (1036, 27269), (1369, 20636), (1474, 19166), (1628, 17353), (1876, 15059), (2479, 11396), (2738, 10318), (2849, 9916), (2948, 9583), (4958, 5698), (5159, 5476)]