20070812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 39880512

約数和(自身を除く): 19809700

約数列:

[1, 2, 4, 17, 23, 34, 41, 46, 68, 82, 92, 164, 313, 391, 626, 697, 782, 943, 1252, 1394, 1564, 1886, 2788, 3772, 5321, 7199, 10642, 12833, 14398, 16031, 21284, 25666, 28796, 32062, 51332, 64124, 122383, 218161, 244766, 295159, 436322, 489532, 590318, 872644, 1180636, 5017703, 10035406, 20070812]

約数ペア:

[(1, 20070812), (2, 10035406), (4, 5017703), (17, 1180636), (23, 872644), (34, 590318), (41, 489532), (46, 436322), (68, 295159), (82, 244766), (92, 218161), (164, 122383), (313, 64124), (391, 51332), (626, 32062), (697, 28796), (782, 25666), (943, 21284), (1252, 16031), (1394, 14398), (1564, 12833), (1886, 10642), (2788, 7199), (3772, 5321)]