About the Number

38420640

38420639 ← → 38420641

2進数表記:10010010100100000010100000

漢数字表記:三千八百四十二万六百四十

素因数分解:

2 5 × 3 2 × 5 1 × 26681 1

素因数の和:26702
約数の個数: 72
約数和(自身を含む): 131115348
約数和(自身を除く): 92694708

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 26681, 53362, 80043, 106724, 133405, 160086, 213448, 240129, 266810, 320172, 400215, 426896, 480258, 533620, 640344, 800430, 853792, 960516, 1067240, 1200645, 1280688, 1600860, 1921032, 2134480, 2401290, 2561376, 3201720, 3842064, 4268960, 4802580, 6403440, 7684128, 9605160, 12806880, 19210320, 38420640]

約数ペア:
[(1, 38420640), (2, 19210320), (3, 12806880), (4, 9605160), (5, 7684128), (6, 6403440), (8, 4802580), (9, 4268960), (10, 3842064), (12, 3201720), (15, 2561376), (16, 2401290), (18, 2134480), (20, 1921032), (24, 1600860), (30, 1280688), (32, 1200645), (36, 1067240), (40, 960516), (45, 853792), (48, 800430), (60, 640344), (72, 533620), (80, 480258), (90, 426896), (96, 400215), (120, 320172), (144, 266810), (160, 240129), (180, 213448), (240, 160086), (288, 133405), (360, 106724), (480, 80043), (720, 53362), (1440, 26681)]

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