255304840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 689356800

約数和(自身を除く): 434051960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 67, 70, 124, 134, 140, 155, 217, 248, 268, 280, 310, 335, 434, 439, 469, 536, 620, 670, 868, 878, 938, 1085, 1240, 1340, 1736, 1756, 1876, 2077, 2170, 2195, 2345, 2680, 3073, 3512, 3752, 4154, 4340, 4390, 4690, 6146, 8308, 8680, 8780, 9380, 10385, 12292, 13609, 14539, 15365, 16616, 17560, 18760, 20770, 24584, 27218, 29078, 29413, 30730, 41540, 54436, 58156, 58826, 61460, 68045, 72695, 83080, 95263, 108872, 116312, 117652, 122920, 136090, 145390, 147065, 190526, 205891, 235304, 272180, 290780, 294130, 381052, 411782, 476315, 544360, 581560, 588260, 762104, 823564, 911803, 952630, 1029455, 1176520, 1647128, 1823606, 1905260, 2058910, 3647212, 3810520, 4117820, 4559015, 6382621, 7294424, 8235640, 9118030, 12765242, 18236060, 25530484, 31913105, 36472120, 51060968, 63826210, 127652420, 255304840]

約数ペア:

[(1, 255304840), (2, 127652420), (4, 63826210), (5, 51060968), (7, 36472120), (8, 31913105), (10, 25530484), (14, 18236060), (20, 12765242), (28, 9118030), (31, 8235640), (35, 7294424), (40, 6382621), (56, 4559015), (62, 4117820), (67, 3810520), (70, 3647212), (124, 2058910), (134, 1905260), (140, 1823606), (155, 1647128), (217, 1176520), (248, 1029455), (268, 952630), (280, 911803), (310, 823564), (335, 762104), (434, 588260), (439, 581560), (469, 544360), (536, 476315), (620, 411782), (670, 381052), (868, 294130), (878, 290780), (938, 272180), (1085, 235304), (1240, 205891), (1340, 190526), (1736, 147065), (1756, 145390), (1876, 136090), (2077, 122920), (2170, 117652), (2195, 116312), (2345, 108872), (2680, 95263), (3073, 83080), (3512, 72695), (3752, 68045), (4154, 61460), (4340, 58826), (4390, 58156), (4690, 54436), (6146, 41540), (8308, 30730), (8680, 29413), (8780, 29078), (9380, 27218), (10385, 24584), (12292, 20770), (13609, 18760), (14539, 17560), (15365, 16616)]