About the Number

381990870

381990869 ← → 381990871

2進数表記:10110110001001011011111010110

漢数字表記:三億八千百九十九万八百七十

素因数分解:

2 1 × 3 3 × 5 1 × 617 1 × 2293 1

素因数の和:2926
約数の個数: 64
約数和(自身を含む): 1020738240
約数和(自身を除く): 638747370

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 617, 1234, 1851, 2293, 3085, 3702, 4586, 5553, 6170, 6879, 9255, 11106, 11465, 13758, 16659, 18510, 20637, 22930, 27765, 33318, 34395, 41274, 55530, 61911, 68790, 83295, 103185, 123822, 166590, 206370, 309555, 619110, 1414781, 2829562, 4244343, 7073905, 8488686, 12733029, 14147810, 21221715, 25466058, 38199087, 42443430, 63665145, 76398174, 127330290, 190995435, 381990870]

約数ペア:
[(1, 381990870), (2, 190995435), (3, 127330290), (5, 76398174), (6, 63665145), (9, 42443430), (10, 38199087), (15, 25466058), (18, 21221715), (27, 14147810), (30, 12733029), (45, 8488686), (54, 7073905), (90, 4244343), (135, 2829562), (270, 1414781), (617, 619110), (1234, 309555), (1851, 206370), (2293, 166590), (3085, 123822), (3702, 103185), (4586, 83295), (5553, 68790), (6170, 61911), (6879, 55530), (9255, 41274), (11106, 34395), (11465, 33318), (13758, 27765), (16659, 22930), (18510, 20637)]

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