About the Number

131312580

131312579 ← → 131312581

2進数表記:111110100111010101111000100

漢数字表記:一億三千百三十一万二千五百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 29 1 × 10781 1

素因数の和:10829
約数の個数: 96
約数和(自身を含む): 434730240
約数和(自身を除く): 303417660

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2436, 3045, 4060, 6090, 10781, 12180, 21562, 32343, 43124, 53905, 64686, 75467, 107810, 129372, 150934, 161715, 215620, 226401, 301868, 312649, 323430, 377335, 452802, 625298, 646860, 754670, 905604, 937947, 1132005, 1250596, 1509340, 1563245, 1875894, 2188543, 2264010, 3126490, 3751788, 4377086, 4528020, 4689735, 6252980, 6565629, 8754172, 9379470, 10942715, 13131258, 18758940, 21885430, 26262516, 32828145, 43770860, 65656290, 131312580]

約数ペア:
[(1, 131312580), (2, 65656290), (3, 43770860), (4, 32828145), (5, 26262516), (6, 21885430), (7, 18758940), (10, 13131258), (12, 10942715), (14, 9379470), (15, 8754172), (20, 6565629), (21, 6252980), (28, 4689735), (29, 4528020), (30, 4377086), (35, 3751788), (42, 3126490), (58, 2264010), (60, 2188543), (70, 1875894), (84, 1563245), (87, 1509340), (105, 1250596), (116, 1132005), (140, 937947), (145, 905604), (174, 754670), (203, 646860), (210, 625298), (290, 452802), (348, 377335), (406, 323430), (420, 312649), (435, 301868), (580, 226401), (609, 215620), (812, 161715), (870, 150934), (1015, 129372), (1218, 107810), (1740, 75467), (2030, 64686), (2436, 53905), (3045, 43124), (4060, 32343), (6090, 21562), (10781, 12180)]

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