28178535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 58097664

約数和(自身を除く): 29919129

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 77, 93, 105, 155, 165, 217, 231, 341, 385, 465, 651, 787, 1023, 1085, 1155, 1705, 2361, 2387, 3255, 3935, 5115, 5509, 7161, 8657, 11805, 11935, 16527, 24397, 25971, 27545, 35805, 43285, 60599, 73191, 82635, 121985, 129855, 170779, 181797, 268367, 302995, 365955, 512337, 805101, 853895, 908985, 1341835, 1878569, 2561685, 4025505, 5635707, 9392845, 28178535]

約数ペア:

[(1, 28178535), (3, 9392845), (5, 5635707), (7, 4025505), (11, 2561685), (15, 1878569), (21, 1341835), (31, 908985), (33, 853895), (35, 805101), (55, 512337), (77, 365955), (93, 302995), (105, 268367), (155, 181797), (165, 170779), (217, 129855), (231, 121985), (341, 82635), (385, 73191), (465, 60599), (651, 43285), (787, 35805), (1023, 27545), (1085, 25971), (1155, 24397), (1705, 16527), (2361, 11935), (2387, 11805), (3255, 8657), (3935, 7161), (5115, 5509)]