About the Number

1809082020

1809082019 ← → 1809082021

2進数表記:1101011110101000110011010100100

漢数字表記:十八億九百八万二千二十

素因数分解:

2 2 × 3 1 × 5 1 × 23 1 × 911 1 × 1439 1

素因数の和:2385
約数の個数: 96
約数和(自身を含む): 5295144960
約数和(自身を除く): 3486062940

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 911, 1380, 1439, 1822, 2733, 2878, 3644, 4317, 4555, 5466, 5756, 7195, 8634, 9110, 10932, 13665, 14390, 17268, 18220, 20953, 21585, 27330, 28780, 33097, 41906, 43170, 54660, 62859, 66194, 83812, 86340, 99291, 104765, 125718, 132388, 165485, 198582, 209530, 251436, 314295, 330970, 397164, 419060, 496455, 628590, 661940, 992910, 1257180, 1310929, 1985820, 2621858, 3932787, 5243716, 6554645, 7865574, 13109290, 15731148, 19663935, 26218580, 30151367, 39327870, 60302734, 78655740, 90454101, 120605468, 150756835, 180908202, 301513670, 361816404, 452270505, 603027340, 904541010, 1809082020]

約数ペア:
[(1, 1809082020), (2, 904541010), (3, 603027340), (4, 452270505), (5, 361816404), (6, 301513670), (10, 180908202), (12, 150756835), (15, 120605468), (20, 90454101), (23, 78655740), (30, 60302734), (46, 39327870), (60, 30151367), (69, 26218580), (92, 19663935), (115, 15731148), (138, 13109290), (230, 7865574), (276, 6554645), (345, 5243716), (460, 3932787), (690, 2621858), (911, 1985820), (1380, 1310929), (1439, 1257180), (1822, 992910), (2733, 661940), (2878, 628590), (3644, 496455), (4317, 419060), (4555, 397164), (5466, 330970), (5756, 314295), (7195, 251436), (8634, 209530), (9110, 198582), (10932, 165485), (13665, 132388), (14390, 125718), (17268, 104765), (18220, 99291), (20953, 86340), (21585, 83812), (27330, 66194), (28780, 62859), (33097, 54660), (41906, 43170)]

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