About the Number

129711428

129711427 ← → 129711429

2進数表記:111101110110011110101000100

漢数字表記:一億二千九百七十一万千四百二十八

素因数分解:

2 2 × 7 2 × 11 1 × 17 1 × 3539 1

素因数の和:3585
約数の個数: 72
約数和(自身を含む): 305091360
約数和(自身を除く): 175379932

約数列:
[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 748, 833, 1078, 1309, 1666, 2156, 2618, 3332, 3539, 5236, 7078, 9163, 14156, 18326, 24773, 36652, 38929, 49546, 60163, 77858, 99092, 120326, 155716, 173411, 240652, 272503, 346822, 421141, 545006, 661793, 693644, 842282, 1090012, 1323586, 1684564, 1907521, 2647172, 2947987, 3815042, 4632551, 5895974, 7630084, 9265102, 11791948, 18530204, 32427857, 64855714, 129711428]

約数ペア:
[(1, 129711428), (2, 64855714), (4, 32427857), (7, 18530204), (11, 11791948), (14, 9265102), (17, 7630084), (22, 5895974), (28, 4632551), (34, 3815042), (44, 2947987), (49, 2647172), (68, 1907521), (77, 1684564), (98, 1323586), (119, 1090012), (154, 842282), (187, 693644), (196, 661793), (238, 545006), (308, 421141), (374, 346822), (476, 272503), (539, 240652), (748, 173411), (833, 155716), (1078, 120326), (1309, 99092), (1666, 77858), (2156, 60163), (2618, 49546), (3332, 38929), (3539, 36652), (5236, 24773), (7078, 18326), (9163, 14156)]

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