27685760

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 66830400

約数和(自身を除く): 39144640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 239, 320, 362, 478, 640, 724, 905, 956, 1195, 1448, 1810, 1912, 2390, 2896, 3620, 3824, 4780, 5792, 7240, 7648, 9560, 11584, 14480, 15296, 19120, 23168, 28960, 30592, 38240, 43259, 57920, 76480, 86518, 115840, 152960, 173036, 216295, 346072, 432590, 692144, 865180, 1384288, 1730360, 2768576, 3460720, 5537152, 6921440, 13842880, 27685760]

約数ペア:

[(1, 27685760), (2, 13842880), (4, 6921440), (5, 5537152), (8, 3460720), (10, 2768576), (16, 1730360), (20, 1384288), (32, 865180), (40, 692144), (64, 432590), (80, 346072), (128, 216295), (160, 173036), (181, 152960), (239, 115840), (320, 86518), (362, 76480), (478, 57920), (640, 43259), (724, 38240), (905, 30592), (956, 28960), (1195, 23168), (1448, 19120), (1810, 15296), (1912, 14480), (2390, 11584), (2896, 9560), (3620, 7648), (3824, 7240), (4780, 5792)]