About the Number

1388890080

1388890079 ← → 1388890081

2進数表記:1010010110010001100011111100000

漢数字表記:十三億八千八百八十九万八十

素因数分解:

2 5 × 3 2 × 5 1 × 964507 1

素因数の和:964528
約数の個数: 72
約数和(自身を含む): 4739592312
約数和(自身を除く): 3350702232

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, 964507, 1929014, 2893521, 3858028, 4822535, 5787042, 7716056, 8680563, 9645070, 11574084, 14467605, 15432112, 17361126, 19290140, 23148168, 28935210, 30864224, 34722252, 38580280, 43402815, 46296336, 57870420, 69444504, 77160560, 86805630, 92592672, 115740840, 138889008, 154321120, 173611260, 231481680, 277778016, 347222520, 462963360, 694445040, 1388890080]

約数ペア:
[(1, 1388890080), (2, 694445040), (3, 462963360), (4, 347222520), (5, 277778016), (6, 231481680), (8, 173611260), (9, 154321120), (10, 138889008), (12, 115740840), (15, 92592672), (16, 86805630), (18, 77160560), (20, 69444504), (24, 57870420), (30, 46296336), (32, 43402815), (36, 38580280), (40, 34722252), (45, 30864224), (48, 28935210), (60, 23148168), (72, 19290140), (80, 17361126), (90, 15432112), (96, 14467605), (120, 11574084), (144, 9645070), (160, 8680563), (180, 7716056), (240, 5787042), (288, 4822535), (360, 3858028), (480, 2893521), (720, 1929014), (1440, 964507)]

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