2780453020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{20599}}^1$

素因数の和:21022

約数の個数: 48

約数和(自身を含む): 6198292800

約数和(自身を除く): 3417839780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 397, 794, 1588, 1985, 3970, 6749, 7940, 13498, 20599, 26996, 33745, 41198, 67490, 82396, 102995, 134980, 205990, 350183, 411980, 700366, 1400732, 1750915, 3501830, 7003660, 8177803, 16355606, 32711212, 40889015, 81778030, 139022651, 163556060, 278045302, 556090604, 695113255, 1390226510, 2780453020]

約数ペア:

[(1, 2780453020), (2, 1390226510), (4, 695113255), (5, 556090604), (10, 278045302), (17, 163556060), (20, 139022651), (34, 81778030), (68, 40889015), (85, 32711212), (170, 16355606), (340, 8177803), (397, 7003660), (794, 3501830), (1588, 1750915), (1985, 1400732), (3970, 700366), (6749, 411980), (7940, 350183), (13498, 205990), (20599, 134980), (26996, 102995), (33745, 82396), (41198, 67490)]