About the Number

8742420

8742419 ← → 8742421

2進数表記:100001010110011000010100

漢数字表記:八百七十四万二千四百二十

素因数分解:

2 2 × 3 2 × 5 1 × 17 1 × 2857 1

素因数の和:2889
約数の個数: 72
約数和(自身を含む): 28088424
約数和(自身を除く): 19346004

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 2857, 3060, 5714, 8571, 11428, 14285, 17142, 25713, 28570, 34284, 42855, 48569, 51426, 57140, 85710, 97138, 102852, 128565, 145707, 171420, 194276, 242845, 257130, 291414, 437121, 485690, 514260, 582828, 728535, 874242, 971380, 1457070, 1748484, 2185605, 2914140, 4371210, 8742420]

約数ペア:
[(1, 8742420), (2, 4371210), (3, 2914140), (4, 2185605), (5, 1748484), (6, 1457070), (9, 971380), (10, 874242), (12, 728535), (15, 582828), (17, 514260), (18, 485690), (20, 437121), (30, 291414), (34, 257130), (36, 242845), (45, 194276), (51, 171420), (60, 145707), (68, 128565), (85, 102852), (90, 97138), (102, 85710), (153, 57140), (170, 51426), (180, 48569), (204, 42855), (255, 34284), (306, 28570), (340, 25713), (510, 17142), (612, 14285), (765, 11428), (1020, 8571), (1530, 5714), (2857, 3060)]

このpageの処理時間: 0.009128570556640625 seconds