About the Number

90128780

90128779 ← → 90128781

2進数表記:101010111110100000110001100

漢数字表記:九千十二万八千七百八十

素因数分解:

2 2 × 5 1 × 7 1 × 19 1 × 31 1 × 1093 1

素因数の和:1159
約数の個数: 96
約数和(自身を含む): 235253760
約数和(自身を除く): 145124980

約数列:
[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 380, 434, 532, 589, 620, 665, 868, 1085, 1093, 1178, 1330, 2170, 2186, 2356, 2660, 2945, 4123, 4340, 4372, 5465, 5890, 7651, 8246, 10930, 11780, 15302, 16492, 20615, 20767, 21860, 30604, 33883, 38255, 41230, 41534, 67766, 76510, 82460, 83068, 103835, 135532, 145369, 153020, 169415, 207670, 237181, 290738, 338830, 415340, 474362, 581476, 643777, 677660, 726845, 948724, 1185905, 1287554, 1453690, 2371810, 2575108, 2907380, 3218885, 4506439, 4743620, 6437770, 9012878, 12875540, 18025756, 22532195, 45064390, 90128780]

約数ペア:
[(1, 90128780), (2, 45064390), (4, 22532195), (5, 18025756), (7, 12875540), (10, 9012878), (14, 6437770), (19, 4743620), (20, 4506439), (28, 3218885), (31, 2907380), (35, 2575108), (38, 2371810), (62, 1453690), (70, 1287554), (76, 1185905), (95, 948724), (124, 726845), (133, 677660), (140, 643777), (155, 581476), (190, 474362), (217, 415340), (266, 338830), (310, 290738), (380, 237181), (434, 207670), (532, 169415), (589, 153020), (620, 145369), (665, 135532), (868, 103835), (1085, 83068), (1093, 82460), (1178, 76510), (1330, 67766), (2170, 41534), (2186, 41230), (2356, 38255), (2660, 33883), (2945, 30604), (4123, 21860), (4340, 20767), (4372, 20615), (5465, 16492), (5890, 15302), (7651, 11780), (8246, 10930)]

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