About the Number

31808128

31808127 ← → 31808129

2進数表記:1111001010101101010000000

漢数字表記:三千百八十万八千百二十八

素因数分解:

2 7 × 11 1 × 19 1 × 29 1 × 41 1

素因数の和:114
約数の個数: 128
約数和(自身を含む): 77112000
約数和(自身を除く): 45303872

約数列:
[1, 2, 4, 8, 11, 16, 19, 22, 29, 32, 38, 41, 44, 58, 64, 76, 82, 88, 116, 128, 152, 164, 176, 209, 232, 304, 319, 328, 352, 418, 451, 464, 551, 608, 638, 656, 704, 779, 836, 902, 928, 1102, 1189, 1216, 1276, 1312, 1408, 1558, 1672, 1804, 1856, 2204, 2378, 2432, 2552, 2624, 3116, 3344, 3608, 3712, 4408, 4756, 5104, 5248, 6061, 6232, 6688, 7216, 8569, 8816, 9512, 10208, 12122, 12464, 13079, 13376, 14432, 17138, 17632, 19024, 20416, 22591, 24244, 24928, 26158, 26752, 28864, 34276, 35264, 38048, 40832, 45182, 48488, 49856, 52316, 57728, 68552, 70528, 76096, 90364, 96976, 99712, 104632, 137104, 152192, 180728, 193952, 209264, 248501, 274208, 361456, 387904, 418528, 497002, 548416, 722912, 775808, 837056, 994004, 1096832, 1445824, 1674112, 1988008, 2891648, 3976016, 7952032, 15904064, 31808128]

約数ペア:
[(1, 31808128), (2, 15904064), (4, 7952032), (8, 3976016), (11, 2891648), (16, 1988008), (19, 1674112), (22, 1445824), (29, 1096832), (32, 994004), (38, 837056), (41, 775808), (44, 722912), (58, 548416), (64, 497002), (76, 418528), (82, 387904), (88, 361456), (116, 274208), (128, 248501), (152, 209264), (164, 193952), (176, 180728), (209, 152192), (232, 137104), (304, 104632), (319, 99712), (328, 96976), (352, 90364), (418, 76096), (451, 70528), (464, 68552), (551, 57728), (608, 52316), (638, 49856), (656, 48488), (704, 45182), (779, 40832), (836, 38048), (902, 35264), (928, 34276), (1102, 28864), (1189, 26752), (1216, 26158), (1276, 24928), (1312, 24244), (1408, 22591), (1558, 20416), (1672, 19024), (1804, 17632), (1856, 17138), (2204, 14432), (2378, 13376), (2432, 13079), (2552, 12464), (2624, 12122), (3116, 10208), (3344, 9512), (3608, 8816), (3712, 8569), (4408, 7216), (4756, 6688), (5104, 6232), (5248, 6061)]

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