About the Number

21028420080

21028420079 ← → 21028420081

2進数表記:10011100101011001000011100111110000

漢数字表記:二百十億二千八百四十二万八十

素因数分解:

2 4 × 3 2 × 5 1 × 2843 1 × 10273 1

素因数の和:13135
約数の個数: 120
約数和(自身を含む): 70652161008
約数和(自身を除く): 49623740928

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 2843, 5686, 8529, 10273, 11372, 14215, 17058, 20546, 22744, 25587, 28430, 30819, 34116, 41092, 42645, 45488, 51174, 51365, 56860, 61638, 68232, 82184, 85290, 92457, 102348, 102730, 113720, 123276, 127935, 136464, 154095, 164368, 170580, 184914, 204696, 205460, 227440, 246552, 255870, 308190, 341160, 369828, 409392, 410920, 462285, 493104, 511740, 616380, 682320, 739656, 821840, 924570, 1023480, 1232760, 1479312, 1849140, 2046960, 2465520, 3698280, 7396560, 29206139, 58412278, 87618417, 116824556, 146030695, 175236834, 233649112, 262855251, 292061390, 350473668, 438092085, 467298224, 525710502, 584122780, 700947336, 876184170, 1051421004, 1168245560, 1314276255, 1401894672, 1752368340, 2102842008, 2336491120, 2628552510, 3504736680, 4205684016, 5257105020, 7009473360, 10514210040, 21028420080]

約数ペア:
[(1, 21028420080), (2, 10514210040), (3, 7009473360), (4, 5257105020), (5, 4205684016), (6, 3504736680), (8, 2628552510), (9, 2336491120), (10, 2102842008), (12, 1752368340), (15, 1401894672), (16, 1314276255), (18, 1168245560), (20, 1051421004), (24, 876184170), (30, 700947336), (36, 584122780), (40, 525710502), (45, 467298224), (48, 438092085), (60, 350473668), (72, 292061390), (80, 262855251), (90, 233649112), (120, 175236834), (144, 146030695), (180, 116824556), (240, 87618417), (360, 58412278), (720, 29206139), (2843, 7396560), (5686, 3698280), (8529, 2465520), (10273, 2046960), (11372, 1849140), (14215, 1479312), (17058, 1232760), (20546, 1023480), (22744, 924570), (25587, 821840), (28430, 739656), (30819, 682320), (34116, 616380), (41092, 511740), (42645, 493104), (45488, 462285), (51174, 410920), (51365, 409392), (56860, 369828), (61638, 341160), (68232, 308190), (82184, 255870), (85290, 246552), (92457, 227440), (102348, 205460), (102730, 204696), (113720, 184914), (123276, 170580), (127935, 164368), (136464, 154095)]

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