About the Number

30988020

30988019 ← → 30988021

2進数表記:1110110001101011011110100

漢数字表記:三千九十八万八千二十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 89 1 × 829 1

素因数の和:937
約数の個数: 96
約数和(自身を含む): 100396800
約数和(自身を除く): 69408780

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 829, 890, 1068, 1246, 1335, 1658, 1780, 1869, 2487, 2492, 2670, 3115, 3316, 3738, 4145, 4974, 5340, 5803, 6230, 7476, 8290, 9345, 9948, 11606, 12435, 12460, 16580, 17409, 18690, 23212, 24870, 29015, 34818, 37380, 49740, 58030, 69636, 73781, 87045, 116060, 147562, 174090, 221343, 295124, 348180, 368905, 442686, 516467, 737810, 885372, 1032934, 1106715, 1475620, 1549401, 2065868, 2213430, 2582335, 3098802, 4426860, 5164670, 6197604, 7747005, 10329340, 15494010, 30988020]

約数ペア:
[(1, 30988020), (2, 15494010), (3, 10329340), (4, 7747005), (5, 6197604), (6, 5164670), (7, 4426860), (10, 3098802), (12, 2582335), (14, 2213430), (15, 2065868), (20, 1549401), (21, 1475620), (28, 1106715), (30, 1032934), (35, 885372), (42, 737810), (60, 516467), (70, 442686), (84, 368905), (89, 348180), (105, 295124), (140, 221343), (178, 174090), (210, 147562), (267, 116060), (356, 87045), (420, 73781), (445, 69636), (534, 58030), (623, 49740), (829, 37380), (890, 34818), (1068, 29015), (1246, 24870), (1335, 23212), (1658, 18690), (1780, 17409), (1869, 16580), (2487, 12460), (2492, 12435), (2670, 11606), (3115, 9948), (3316, 9345), (3738, 8290), (4145, 7476), (4974, 6230), (5340, 5803)]

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