About the Number

388804740

388804739 ← → 388804741

2進数表記:10111001011001011000010000100

漢数字表記:三億八千八百八十万四千七百四十

素因数分解:

2 2 × 3 1 × 5 1 × 29 1 × 439 1 × 509 1

素因数の和:989
約数の個数: 96
約数和(自身を含む): 1130976000
約数和(自身を除く): 742171260

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 439, 509, 580, 870, 878, 1018, 1317, 1527, 1740, 1756, 2036, 2195, 2545, 2634, 3054, 4390, 5090, 5268, 6108, 6585, 7635, 8780, 10180, 12731, 13170, 14761, 15270, 25462, 26340, 29522, 30540, 38193, 44283, 50924, 59044, 63655, 73805, 76386, 88566, 127310, 147610, 152772, 177132, 190965, 221415, 223451, 254620, 295220, 381930, 442830, 446902, 670353, 763860, 885660, 893804, 1117255, 1340706, 2234510, 2681412, 3351765, 4469020, 6480079, 6703530, 12960158, 13407060, 19440237, 25920316, 32400395, 38880474, 64800790, 77760948, 97201185, 129601580, 194402370, 388804740]

約数ペア:
[(1, 388804740), (2, 194402370), (3, 129601580), (4, 97201185), (5, 77760948), (6, 64800790), (10, 38880474), (12, 32400395), (15, 25920316), (20, 19440237), (29, 13407060), (30, 12960158), (58, 6703530), (60, 6480079), (87, 4469020), (116, 3351765), (145, 2681412), (174, 2234510), (290, 1340706), (348, 1117255), (435, 893804), (439, 885660), (509, 763860), (580, 670353), (870, 446902), (878, 442830), (1018, 381930), (1317, 295220), (1527, 254620), (1740, 223451), (1756, 221415), (2036, 190965), (2195, 177132), (2545, 152772), (2634, 147610), (3054, 127310), (4390, 88566), (5090, 76386), (5268, 73805), (6108, 63655), (6585, 59044), (7635, 50924), (8780, 44283), (10180, 38193), (12731, 30540), (13170, 29522), (14761, 26340), (15270, 25462)]

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