81196760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1231}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 195592320

約数和(自身を除く): 114395560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 97, 136, 170, 194, 340, 388, 485, 680, 776, 970, 1231, 1649, 1940, 2462, 3298, 3880, 4924, 6155, 6596, 8245, 9848, 12310, 13192, 16490, 20927, 24620, 32980, 41854, 49240, 65960, 83708, 104635, 119407, 167416, 209270, 238814, 418540, 477628, 597035, 837080, 955256, 1194070, 2029919, 2388140, 4059838, 4776280, 8119676, 10149595, 16239352, 20299190, 40598380, 81196760]

約数ペア:

[(1, 81196760), (2, 40598380), (4, 20299190), (5, 16239352), (8, 10149595), (10, 8119676), (17, 4776280), (20, 4059838), (34, 2388140), (40, 2029919), (68, 1194070), (85, 955256), (97, 837080), (136, 597035), (170, 477628), (194, 418540), (340, 238814), (388, 209270), (485, 167416), (680, 119407), (776, 104635), (970, 83708), (1231, 65960), (1649, 49240), (1940, 41854), (2462, 32980), (3298, 24620), (3880, 20927), (4924, 16490), (6155, 13192), (6596, 12310), (8245, 9848)]