218581930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{383}}^1$

素因数の和:691

約数の個数: 64

約数和(自身を含む): 467140608

約数和(自身を除く): 248558678

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 263, 310, 383, 434, 526, 766, 1085, 1315, 1841, 1915, 2170, 2630, 2681, 3682, 3830, 5362, 8153, 9205, 11873, 13405, 16306, 18410, 23746, 26810, 40765, 57071, 59365, 81530, 83111, 100729, 114142, 118730, 166222, 201458, 285355, 415555, 503645, 570710, 705103, 831110, 1007290, 1410206, 3122599, 3525515, 6245198, 7051030, 15612995, 21858193, 31225990, 43716386, 109290965, 218581930]

約数ペア:

[(1, 218581930), (2, 109290965), (5, 43716386), (7, 31225990), (10, 21858193), (14, 15612995), (31, 7051030), (35, 6245198), (62, 3525515), (70, 3122599), (155, 1410206), (217, 1007290), (263, 831110), (310, 705103), (383, 570710), (434, 503645), (526, 415555), (766, 285355), (1085, 201458), (1315, 166222), (1841, 118730), (1915, 114142), (2170, 100729), (2630, 83111), (2681, 81530), (3682, 59365), (3830, 57071), (5362, 40765), (8153, 26810), (9205, 23746), (11873, 18410), (13405, 16306)]