209655908

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2069}}^1$

素因数の和:2145

約数の個数: 72

約数和(自身を含む): 475735680

約数和(自身を除く): 266079772

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 49, 77, 94, 98, 154, 188, 196, 308, 329, 517, 539, 658, 1034, 1078, 1316, 2068, 2069, 2156, 2303, 3619, 4138, 4606, 7238, 8276, 9212, 14476, 14483, 22759, 25333, 28966, 45518, 50666, 57932, 91036, 97243, 101332, 101381, 159313, 194486, 202762, 318626, 388972, 405524, 637252, 680701, 1069673, 1115191, 1361402, 2139346, 2230382, 2722804, 4278692, 4460764, 4764907, 7487711, 9529814, 14975422, 19059628, 29950844, 52413977, 104827954, 209655908]

約数ペア:

[(1, 209655908), (2, 104827954), (4, 52413977), (7, 29950844), (11, 19059628), (14, 14975422), (22, 9529814), (28, 7487711), (44, 4764907), (47, 4460764), (49, 4278692), (77, 2722804), (94, 2230382), (98, 2139346), (154, 1361402), (188, 1115191), (196, 1069673), (308, 680701), (329, 637252), (517, 405524), (539, 388972), (658, 318626), (1034, 202762), (1078, 194486), (1316, 159313), (2068, 101381), (2069, 101332), (2156, 97243), (2303, 91036), (3619, 57932), (4138, 50666), (4606, 45518), (7238, 28966), (8276, 25333), (9212, 22759), (14476, 14483)]