81853120

素因数分解:

$2^6\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1429}}^1$

素因数の和:1625

約数の個数: 56

約数和(自身を含む): 196138800

約数和(自身を除く): 114285680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 179, 320, 358, 716, 895, 1429, 1432, 1790, 2858, 2864, 3580, 5716, 5728, 7145, 7160, 11432, 11456, 14290, 14320, 22864, 28580, 28640, 45728, 57160, 57280, 91456, 114320, 228640, 255791, 457280, 511582, 1023164, 1278955, 2046328, 2557910, 4092656, 5115820, 8185312, 10231640, 16370624, 20463280, 40926560, 81853120]

約数ペア:

[(1, 81853120), (2, 40926560), (4, 20463280), (5, 16370624), (8, 10231640), (10, 8185312), (16, 5115820), (20, 4092656), (32, 2557910), (40, 2046328), (64, 1278955), (80, 1023164), (160, 511582), (179, 457280), (320, 255791), (358, 228640), (716, 114320), (895, 91456), (1429, 57280), (1432, 57160), (1790, 45728), (2858, 28640), (2864, 28580), (3580, 22864), (5716, 14320), (5728, 14290), (7145, 11456), (7160, 11432)]