27187760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19991}}^1$

素因数の和:20021

約数の個数: 40

約数和(自身を含む): 66933216

約数和(自身を除く): 39745456

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 19991, 39982, 79964, 99955, 159928, 199910, 319856, 339847, 399820, 679694, 799640, 1359388, 1599280, 1699235, 2718776, 3398470, 5437552, 6796940, 13593880, 27187760]

約数ペア:

[(1, 27187760), (2, 13593880), (4, 6796940), (5, 5437552), (8, 3398470), (10, 2718776), (16, 1699235), (17, 1599280), (20, 1359388), (34, 799640), (40, 679694), (68, 399820), (80, 339847), (85, 319856), (136, 199910), (170, 159928), (272, 99955), (340, 79964), (680, 39982), (1360, 19991)]