54375520

素因数分解:

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

素因数の和:20023

約数の個数: 48

約数和(自身を含む): 136025568

約数和(自身を除く): 81650048

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 19991, 39982, 79964, 99955, 159928, 199910, 319856, 339847, 399820, 639712, 679694, 799640, 1359388, 1599280, 1699235, 2718776, 3198560, 3398470, 5437552, 6796940, 10875104, 13593880, 27187760, 54375520]

約数ペア:

[(1, 54375520), (2, 27187760), (4, 13593880), (5, 10875104), (8, 6796940), (10, 5437552), (16, 3398470), (17, 3198560), (20, 2718776), (32, 1699235), (34, 1599280), (40, 1359388), (68, 799640), (80, 679694), (85, 639712), (136, 399820), (160, 339847), (170, 319856), (272, 199910), (340, 159928), (544, 99955), (680, 79964), (1360, 39982), (2720, 19991)]