About the Number

138912870

138912869 ← → 138912871

2進数表記:1000010001111010010001100110

漢数字表記:一億三千八百九十一万二千八百七十

素因数分解:

2 1 × 3 1 × 5 1 × 23 1 × 109 1 × 1847 1

素因数の和:1989
約数の個数: 64
約数和(自身を含む): 351267840
約数和(自身を除く): 212354970

約数列:
[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 109, 115, 138, 218, 230, 327, 345, 545, 654, 690, 1090, 1635, 1847, 2507, 3270, 3694, 5014, 5541, 7521, 9235, 11082, 12535, 15042, 18470, 25070, 27705, 37605, 42481, 55410, 75210, 84962, 127443, 201323, 212405, 254886, 402646, 424810, 603969, 637215, 1006615, 1207938, 1274430, 2013230, 3019845, 4630429, 6039690, 9260858, 13891287, 23152145, 27782574, 46304290, 69456435, 138912870]

約数ペア:
[(1, 138912870), (2, 69456435), (3, 46304290), (5, 27782574), (6, 23152145), (10, 13891287), (15, 9260858), (23, 6039690), (30, 4630429), (46, 3019845), (69, 2013230), (109, 1274430), (115, 1207938), (138, 1006615), (218, 637215), (230, 603969), (327, 424810), (345, 402646), (545, 254886), (654, 212405), (690, 201323), (1090, 127443), (1635, 84962), (1847, 75210), (2507, 55410), (3270, 42481), (3694, 37605), (5014, 27705), (5541, 25070), (7521, 18470), (9235, 15042), (11082, 12535)]

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