218213660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{2081}}^1$

素因数の和:2211

約数の個数: 72

約数和(自身を含む): 538305264

約数和(自身を除く): 320091604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 107, 140, 196, 214, 245, 428, 490, 535, 749, 980, 1070, 1498, 2081, 2140, 2996, 3745, 4162, 5243, 7490, 8324, 10405, 10486, 14567, 14980, 20810, 20972, 26215, 29134, 41620, 52430, 58268, 72835, 101969, 104860, 145670, 203938, 222667, 291340, 407876, 445334, 509845, 890668, 1019690, 1113335, 1558669, 2039380, 2226670, 3117338, 4453340, 6234676, 7793345, 10910683, 15586690, 21821366, 31173380, 43642732, 54553415, 109106830, 218213660]

約数ペア:

[(1, 218213660), (2, 109106830), (4, 54553415), (5, 43642732), (7, 31173380), (10, 21821366), (14, 15586690), (20, 10910683), (28, 7793345), (35, 6234676), (49, 4453340), (70, 3117338), (98, 2226670), (107, 2039380), (140, 1558669), (196, 1113335), (214, 1019690), (245, 890668), (428, 509845), (490, 445334), (535, 407876), (749, 291340), (980, 222667), (1070, 203938), (1498, 145670), (2081, 104860), (2140, 101969), (2996, 72835), (3745, 58268), (4162, 52430), (5243, 41620), (7490, 29134), (8324, 26215), (10405, 20972), (10486, 20810), (14567, 14980)]