About the Number

1821985940

1821985939 ← → 1821985941

2進数表記:1101100100110010100110010010100

漢数字表記:十八億二千百九十八万五千九百四十

素因数分解:

2 2 × 5 1 × 23 1 × 31 1 × 67 1 × 1907 1

素因数の和:2037
約数の個数: 96
約数和(自身を含む): 4185022464
約数和(自身を除く): 2363036524

約数列:
[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 67, 92, 115, 124, 134, 155, 230, 268, 310, 335, 460, 620, 670, 713, 1340, 1426, 1541, 1907, 2077, 2852, 3082, 3565, 3814, 4154, 6164, 7130, 7628, 7705, 8308, 9535, 10385, 14260, 15410, 19070, 20770, 30820, 38140, 41540, 43861, 47771, 59117, 87722, 95542, 118234, 127769, 175444, 191084, 219305, 236468, 238855, 255538, 295585, 438610, 477710, 511076, 591170, 638845, 877220, 955420, 1182340, 1277690, 1359691, 2555380, 2719382, 2938687, 3960839, 5438764, 5877374, 6798455, 7921678, 11754748, 13596910, 14693435, 15843356, 19804195, 27193820, 29386870, 39608390, 58773740, 79216780, 91099297, 182198594, 364397188, 455496485, 910992970, 1821985940]

約数ペア:
[(1, 1821985940), (2, 910992970), (4, 455496485), (5, 364397188), (10, 182198594), (20, 91099297), (23, 79216780), (31, 58773740), (46, 39608390), (62, 29386870), (67, 27193820), (92, 19804195), (115, 15843356), (124, 14693435), (134, 13596910), (155, 11754748), (230, 7921678), (268, 6798455), (310, 5877374), (335, 5438764), (460, 3960839), (620, 2938687), (670, 2719382), (713, 2555380), (1340, 1359691), (1426, 1277690), (1541, 1182340), (1907, 955420), (2077, 877220), (2852, 638845), (3082, 591170), (3565, 511076), (3814, 477710), (4154, 438610), (6164, 295585), (7130, 255538), (7628, 238855), (7705, 236468), (8308, 219305), (9535, 191084), (10385, 175444), (14260, 127769), (15410, 118234), (19070, 95542), (20770, 87722), (30820, 59117), (38140, 47771), (41540, 43861)]

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