20065892

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 25783996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 49, 77, 82, 98, 154, 164, 196, 227, 287, 308, 451, 454, 539, 574, 902, 908, 1078, 1148, 1589, 1804, 2009, 2156, 2497, 3157, 3178, 4018, 4994, 6314, 6356, 8036, 9307, 9988, 11123, 12628, 17479, 18614, 22099, 22246, 34958, 37228, 44198, 44492, 65149, 69916, 88396, 102377, 122353, 130298, 204754, 244706, 260596, 409508, 456043, 489412, 716639, 912086, 1433278, 1824172, 2866556, 5016473, 10032946, 20065892]

約数ペア:

[(1, 20065892), (2, 10032946), (4, 5016473), (7, 2866556), (11, 1824172), (14, 1433278), (22, 912086), (28, 716639), (41, 489412), (44, 456043), (49, 409508), (77, 260596), (82, 244706), (98, 204754), (154, 130298), (164, 122353), (196, 102377), (227, 88396), (287, 69916), (308, 65149), (451, 44492), (454, 44198), (539, 37228), (574, 34958), (902, 22246), (908, 22099), (1078, 18614), (1148, 17479), (1589, 12628), (1804, 11123), (2009, 9988), (2156, 9307), (2497, 8036), (3157, 6356), (3178, 6314), (4018, 4994)]