280219992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{20887}}^1$

素因数の和:20952

約数の個数: 64

約数和(自身を含む): 772020480

約数和(自身を除く): 491800488

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 43, 52, 78, 86, 104, 129, 156, 172, 258, 312, 344, 516, 559, 1032, 1118, 1677, 2236, 3354, 4472, 6708, 13416, 20887, 41774, 62661, 83548, 125322, 167096, 250644, 271531, 501288, 543062, 814593, 898141, 1086124, 1629186, 1796282, 2172248, 2694423, 3258372, 3592564, 5388846, 6516744, 7185128, 10777692, 11675833, 21555384, 23351666, 35027499, 46703332, 70054998, 93406664, 140109996, 280219992]

約数ペア:

[(1, 280219992), (2, 140109996), (3, 93406664), (4, 70054998), (6, 46703332), (8, 35027499), (12, 23351666), (13, 21555384), (24, 11675833), (26, 10777692), (39, 7185128), (43, 6516744), (52, 5388846), (78, 3592564), (86, 3258372), (104, 2694423), (129, 2172248), (156, 1796282), (172, 1629186), (258, 1086124), (312, 898141), (344, 814593), (516, 543062), (559, 501288), (1032, 271531), (1118, 250644), (1677, 167096), (2236, 125322), (3354, 83548), (4472, 62661), (6708, 41774), (13416, 20887)]