2109860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 4741632

約数和(自身を除く): 2631772

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 83, 124, 155, 164, 166, 205, 310, 332, 410, 415, 620, 820, 830, 1271, 1660, 2542, 2573, 3403, 5084, 5146, 6355, 6806, 10292, 12710, 12865, 13612, 17015, 25420, 25730, 34030, 51460, 68060, 105493, 210986, 421972, 527465, 1054930, 2109860]

約数ペア:

[(1, 2109860), (2, 1054930), (4, 527465), (5, 421972), (10, 210986), (20, 105493), (31, 68060), (41, 51460), (62, 34030), (82, 25730), (83, 25420), (124, 17015), (155, 13612), (164, 12865), (166, 12710), (205, 10292), (310, 6806), (332, 6355), (410, 5146), (415, 5084), (620, 3403), (820, 2573), (830, 2542), (1271, 1660)]