About the Number

390378940

390378939 ← → 390378941

2進数表記:10111010001001011010110111100

漢数字表記:三億九千三十七万八千九百四十

素因数分解:

2 2 × 5 1 × 7 1 × 19 1 × 43 1 × 3413 1

素因数の和:3491
約数の個数: 96
約数和(自身を含む): 1009451520
約数和(自身を除く): 619072580

約数列:
[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 70, 76, 86, 95, 133, 140, 172, 190, 215, 266, 301, 380, 430, 532, 602, 665, 817, 860, 1204, 1330, 1505, 1634, 2660, 3010, 3268, 3413, 4085, 5719, 6020, 6826, 8170, 11438, 13652, 16340, 17065, 22876, 23891, 28595, 34130, 47782, 57190, 64847, 68260, 95564, 114380, 119455, 129694, 146759, 238910, 259388, 293518, 324235, 453929, 477820, 587036, 648470, 733795, 907858, 1027313, 1296940, 1467590, 1815716, 2054626, 2269645, 2788421, 2935180, 4109252, 4539290, 5136565, 5576842, 9078580, 10273130, 11153684, 13942105, 19518947, 20546260, 27884210, 39037894, 55768420, 78075788, 97594735, 195189470, 390378940]

約数ペア:
[(1, 390378940), (2, 195189470), (4, 97594735), (5, 78075788), (7, 55768420), (10, 39037894), (14, 27884210), (19, 20546260), (20, 19518947), (28, 13942105), (35, 11153684), (38, 10273130), (43, 9078580), (70, 5576842), (76, 5136565), (86, 4539290), (95, 4109252), (133, 2935180), (140, 2788421), (172, 2269645), (190, 2054626), (215, 1815716), (266, 1467590), (301, 1296940), (380, 1027313), (430, 907858), (532, 733795), (602, 648470), (665, 587036), (817, 477820), (860, 453929), (1204, 324235), (1330, 293518), (1505, 259388), (1634, 238910), (2660, 146759), (3010, 129694), (3268, 119455), (3413, 114380), (4085, 95564), (5719, 68260), (6020, 64847), (6826, 57190), (8170, 47782), (11438, 34130), (13652, 28595), (16340, 23891), (17065, 22876)]

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