About the Number

640040640

640040639 ← → 640040641

2進数表記:100110001001100011111011000000

漢数字表記:六億四千四万六百四十

素因数分解:

2 6 × 3 1 × 5 1 × 73 1 × 9133 1

素因数の和:9226
約数の個数: 112
約数和(自身を含む): 2060191968
約数和(自身を除く): 1420151328

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 73, 80, 96, 120, 146, 160, 192, 219, 240, 292, 320, 365, 438, 480, 584, 730, 876, 960, 1095, 1168, 1460, 1752, 2190, 2336, 2920, 3504, 4380, 4672, 5840, 7008, 8760, 9133, 11680, 14016, 17520, 18266, 23360, 27399, 35040, 36532, 45665, 54798, 70080, 73064, 91330, 109596, 136995, 146128, 182660, 219192, 273990, 292256, 365320, 438384, 547980, 584512, 666709, 730640, 876768, 1095960, 1333418, 1461280, 1753536, 2000127, 2191920, 2666836, 2922560, 3333545, 4000254, 4383840, 5333672, 6667090, 8000508, 8767680, 10000635, 10667344, 13334180, 16001016, 20001270, 21334688, 26668360, 32002032, 40002540, 42669376, 53336720, 64004064, 80005080, 106673440, 128008128, 160010160, 213346880, 320020320, 640040640]

約数ペア:
[(1, 640040640), (2, 320020320), (3, 213346880), (4, 160010160), (5, 128008128), (6, 106673440), (8, 80005080), (10, 64004064), (12, 53336720), (15, 42669376), (16, 40002540), (20, 32002032), (24, 26668360), (30, 21334688), (32, 20001270), (40, 16001016), (48, 13334180), (60, 10667344), (64, 10000635), (73, 8767680), (80, 8000508), (96, 6667090), (120, 5333672), (146, 4383840), (160, 4000254), (192, 3333545), (219, 2922560), (240, 2666836), (292, 2191920), (320, 2000127), (365, 1753536), (438, 1461280), (480, 1333418), (584, 1095960), (730, 876768), (876, 730640), (960, 666709), (1095, 584512), (1168, 547980), (1460, 438384), (1752, 365320), (2190, 292256), (2336, 273990), (2920, 219192), (3504, 182660), (4380, 146128), (4672, 136995), (5840, 109596), (7008, 91330), (8760, 73064), (9133, 70080), (11680, 54798), (14016, 45665), (17520, 36532), (18266, 35040), (23360, 27399)]

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