About the Number

2131521280

2131521279 ← → 2131521281

2進数表記:1111111000011000110111100000000

漢数字表記:二十一億三千百五十二万千二百八十

素因数分解:

2 8 × 5 1 × 7 1 × 233 1 × 1021 1

素因数の和:1282
約数の個数: 144
約数和(自身を含む): 5865822144
約数和(自身を除く): 3734300864

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 233, 256, 280, 320, 448, 466, 560, 640, 896, 932, 1021, 1120, 1165, 1280, 1631, 1792, 1864, 2042, 2240, 2330, 3262, 3728, 4084, 4480, 4660, 5105, 6524, 7147, 7456, 8155, 8168, 8960, 9320, 10210, 13048, 14294, 14912, 16310, 16336, 18640, 20420, 26096, 28588, 29824, 32620, 32672, 35735, 37280, 40840, 52192, 57176, 59648, 65240, 65344, 71470, 74560, 81680, 104384, 114352, 130480, 130688, 142940, 149120, 163360, 208768, 228704, 237893, 260960, 261376, 285880, 298240, 326720, 417536, 457408, 475786, 521920, 571760, 653440, 914816, 951572, 1043840, 1143520, 1189465, 1306880, 1665251, 1829632, 1903144, 2087680, 2287040, 2378930, 3330502, 3806288, 4574080, 4757860, 6661004, 7612576, 8326255, 9148160, 9515720, 13322008, 15225152, 16652510, 19031440, 26644016, 30450304, 33305020, 38062880, 53288032, 60900608, 66610040, 76125760, 106576064, 133220080, 152251520, 213152128, 266440160, 304503040, 426304256, 532880320, 1065760640, 2131521280]

約数ペア:
[(1, 2131521280), (2, 1065760640), (4, 532880320), (5, 426304256), (7, 304503040), (8, 266440160), (10, 213152128), (14, 152251520), (16, 133220080), (20, 106576064), (28, 76125760), (32, 66610040), (35, 60900608), (40, 53288032), (56, 38062880), (64, 33305020), (70, 30450304), (80, 26644016), (112, 19031440), (128, 16652510), (140, 15225152), (160, 13322008), (224, 9515720), (233, 9148160), (256, 8326255), (280, 7612576), (320, 6661004), (448, 4757860), (466, 4574080), (560, 3806288), (640, 3330502), (896, 2378930), (932, 2287040), (1021, 2087680), (1120, 1903144), (1165, 1829632), (1280, 1665251), (1631, 1306880), (1792, 1189465), (1864, 1143520), (2042, 1043840), (2240, 951572), (2330, 914816), (3262, 653440), (3728, 571760), (4084, 521920), (4480, 475786), (4660, 457408), (5105, 417536), (6524, 326720), (7147, 298240), (7456, 285880), (8155, 261376), (8168, 260960), (8960, 237893), (9320, 228704), (10210, 208768), (13048, 163360), (14294, 149120), (14912, 142940), (16310, 130688), (16336, 130480), (18640, 114352), (20420, 104384), (26096, 81680), (28588, 74560), (29824, 71470), (32620, 65344), (32672, 65240), (35735, 59648), (37280, 57176), (40840, 52192)]

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