About the Number

681421120

681421119 ← → 681421121

2進数表記:101000100111011010100101000000

漢数字表記:六億八千百四十二万千百二十

素因数分解:

2 6 × 5 1 × 29 1 × 97 1 × 757 1

素因数の和:900
約数の個数: 112
約数和(自身を含む): 1698132240
約数和(自身を除く): 1016711120

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 97, 116, 145, 160, 194, 232, 290, 320, 388, 464, 485, 580, 757, 776, 928, 970, 1160, 1514, 1552, 1856, 1940, 2320, 2813, 3028, 3104, 3785, 3880, 4640, 5626, 6056, 6208, 7570, 7760, 9280, 11252, 12112, 14065, 15140, 15520, 21953, 22504, 24224, 28130, 30280, 31040, 43906, 45008, 48448, 56260, 60560, 73429, 87812, 90016, 109765, 112520, 121120, 146858, 175624, 180032, 219530, 225040, 242240, 293716, 351248, 367145, 439060, 450080, 587432, 702496, 734290, 878120, 900160, 1174864, 1404992, 1468580, 1756240, 2129441, 2349728, 2937160, 3512480, 4258882, 4699456, 5874320, 7024960, 8517764, 10647205, 11748640, 17035528, 21294410, 23497280, 34071056, 42588820, 68142112, 85177640, 136284224, 170355280, 340710560, 681421120]

約数ペア:
[(1, 681421120), (2, 340710560), (4, 170355280), (5, 136284224), (8, 85177640), (10, 68142112), (16, 42588820), (20, 34071056), (29, 23497280), (32, 21294410), (40, 17035528), (58, 11748640), (64, 10647205), (80, 8517764), (97, 7024960), (116, 5874320), (145, 4699456), (160, 4258882), (194, 3512480), (232, 2937160), (290, 2349728), (320, 2129441), (388, 1756240), (464, 1468580), (485, 1404992), (580, 1174864), (757, 900160), (776, 878120), (928, 734290), (970, 702496), (1160, 587432), (1514, 450080), (1552, 439060), (1856, 367145), (1940, 351248), (2320, 293716), (2813, 242240), (3028, 225040), (3104, 219530), (3785, 180032), (3880, 175624), (4640, 146858), (5626, 121120), (6056, 112520), (6208, 109765), (7570, 90016), (7760, 87812), (9280, 73429), (11252, 60560), (12112, 56260), (14065, 48448), (15140, 45008), (15520, 43906), (21953, 31040), (22504, 30280), (24224, 28130)]

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