721880458

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{683}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 1216671840

約数和(自身を除く): 494791382

約数列:

[1, 2, 13, 26, 53, 59, 106, 118, 169, 338, 683, 689, 767, 1366, 1378, 1534, 3127, 6254, 8879, 8957, 9971, 17758, 17914, 19942, 36199, 40297, 40651, 72398, 80594, 81302, 115427, 230854, 470587, 523861, 528463, 941174, 1047722, 1056926, 2135741, 4271482, 6117631, 6810193, 12235262, 13620386, 27764633, 55529266, 360940229, 721880458]

約数ペア:

[(1, 721880458), (2, 360940229), (13, 55529266), (26, 27764633), (53, 13620386), (59, 12235262), (106, 6810193), (118, 6117631), (169, 4271482), (338, 2135741), (683, 1056926), (689, 1047722), (767, 941174), (1366, 528463), (1378, 523861), (1534, 470587), (3127, 230854), (6254, 115427), (8879, 81302), (8957, 80594), (9971, 72398), (17758, 40651), (17914, 40297), (19942, 36199)]