2012207720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1\times {\mathrm{2789}}^1$

素因数の和:3878

約数の個数: 64

約数和(自身を含む): 4800027600

約数和(自身を除く): 2787819880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1061, 2122, 2789, 4244, 5305, 5578, 8488, 10610, 11156, 13945, 18037, 21220, 22312, 27890, 36074, 42440, 47413, 55780, 72148, 90185, 94826, 111560, 144296, 180370, 189652, 237065, 360740, 379304, 474130, 721480, 948260, 1896520, 2959129, 5918258, 11836516, 14795645, 23673032, 29591290, 50305193, 59182580, 100610386, 118365160, 201220772, 251525965, 402441544, 503051930, 1006103860, 2012207720]

約数ペア:

[(1, 2012207720), (2, 1006103860), (4, 503051930), (5, 402441544), (8, 251525965), (10, 201220772), (17, 118365160), (20, 100610386), (34, 59182580), (40, 50305193), (68, 29591290), (85, 23673032), (136, 14795645), (170, 11836516), (340, 5918258), (680, 2959129), (1061, 1896520), (2122, 948260), (2789, 721480), (4244, 474130), (5305, 379304), (5578, 360740), (8488, 237065), (10610, 189652), (11156, 180370), (13945, 144296), (18037, 111560), (21220, 94826), (22312, 90185), (27890, 72148), (36074, 55780), (42440, 47413)]