28288988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 66232320

約数和(自身を除く): 37943332

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 31, 46, 52, 62, 91, 92, 109, 124, 161, 182, 217, 218, 299, 322, 364, 403, 434, 436, 598, 644, 713, 763, 806, 868, 1196, 1417, 1426, 1526, 1612, 2093, 2507, 2821, 2834, 2852, 3052, 3379, 4186, 4991, 5014, 5642, 5668, 6758, 8372, 9269, 9919, 9982, 10028, 11284, 13516, 17549, 18538, 19838, 19964, 23653, 32591, 35098, 37076, 39676, 43927, 47306, 64883, 65182, 70196, 77717, 87854, 94612, 129766, 130364, 155434, 175708, 228137, 259532, 307489, 310868, 456274, 544019, 614978, 912548, 1010321, 1088038, 1229956, 2020642, 2176076, 4041284, 7072247, 14144494, 28288988]

約数ペア:

[(1, 28288988), (2, 14144494), (4, 7072247), (7, 4041284), (13, 2176076), (14, 2020642), (23, 1229956), (26, 1088038), (28, 1010321), (31, 912548), (46, 614978), (52, 544019), (62, 456274), (91, 310868), (92, 307489), (109, 259532), (124, 228137), (161, 175708), (182, 155434), (217, 130364), (218, 129766), (299, 94612), (322, 87854), (364, 77717), (403, 70196), (434, 65182), (436, 64883), (598, 47306), (644, 43927), (713, 39676), (763, 37076), (806, 35098), (868, 32591), (1196, 23653), (1417, 19964), (1426, 19838), (1526, 18538), (1612, 17549), (2093, 13516), (2507, 11284), (2821, 10028), (2834, 9982), (2852, 9919), (3052, 9269), (3379, 8372), (4186, 6758), (4991, 5668), (5014, 5642)]