About the Number

381020320

381020319 ← → 381020321

2進数表記:10110101101011110100010100000

漢数字表記:三億八千百二万三百二十

素因数分解:

2 5 × 5 1 × 17 1 × 127 1 × 1103 1

素因数の和:1262
約数の個数: 96
約数和(自身を含む): 961486848
約数和(自身を除く): 580466528

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 127, 136, 160, 170, 254, 272, 340, 508, 544, 635, 680, 1016, 1103, 1270, 1360, 2032, 2159, 2206, 2540, 2720, 4064, 4318, 4412, 5080, 5515, 8636, 8824, 10160, 10795, 11030, 17272, 17648, 18751, 20320, 21590, 22060, 34544, 35296, 37502, 43180, 44120, 69088, 75004, 86360, 88240, 93755, 140081, 150008, 172720, 176480, 187510, 280162, 300016, 345440, 375020, 560324, 600032, 700405, 750040, 1120648, 1400810, 1500080, 2241296, 2381377, 2801620, 3000160, 4482592, 4762754, 5603240, 9525508, 11206480, 11906885, 19051016, 22412960, 23813770, 38102032, 47627540, 76204064, 95255080, 190510160, 381020320]

約数ペア:
[(1, 381020320), (2, 190510160), (4, 95255080), (5, 76204064), (8, 47627540), (10, 38102032), (16, 23813770), (17, 22412960), (20, 19051016), (32, 11906885), (34, 11206480), (40, 9525508), (68, 5603240), (80, 4762754), (85, 4482592), (127, 3000160), (136, 2801620), (160, 2381377), (170, 2241296), (254, 1500080), (272, 1400810), (340, 1120648), (508, 750040), (544, 700405), (635, 600032), (680, 560324), (1016, 375020), (1103, 345440), (1270, 300016), (1360, 280162), (2032, 187510), (2159, 176480), (2206, 172720), (2540, 150008), (2720, 140081), (4064, 93755), (4318, 88240), (4412, 86360), (5080, 75004), (5515, 69088), (8636, 44120), (8824, 43180), (10160, 37502), (10795, 35296), (11030, 34544), (17272, 22060), (17648, 21590), (18751, 20320)]

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