18879680

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1439}}^1$

素因数の和:1497

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 27206080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1439, 1640, 2624, 2878, 3280, 5756, 6560, 7195, 11512, 13120, 14390, 23024, 28780, 46048, 57560, 58999, 92096, 115120, 117998, 230240, 235996, 294995, 460480, 471992, 589990, 943984, 1179980, 1887968, 2359960, 3775936, 4719920, 9439840, 18879680]

約数ペア:

[(1, 18879680), (2, 9439840), (4, 4719920), (5, 3775936), (8, 2359960), (10, 1887968), (16, 1179980), (20, 943984), (32, 589990), (40, 471992), (41, 460480), (64, 294995), (80, 235996), (82, 230240), (160, 117998), (164, 115120), (205, 92096), (320, 58999), (328, 57560), (410, 46048), (656, 28780), (820, 23024), (1312, 14390), (1439, 13120), (1640, 11512), (2624, 7195), (2878, 6560), (3280, 5756)]