About the Number

1320806490

1320806489 ← → 1320806491

2進数表記:1001110101110011110100001011010

漢数字表記:十三億二千八十万六千四百九十

素因数分解:

2 1 × 3 1 × 5 1 × 43 1 × 461 1 × 2221 1

素因数の和:2735
約数の個数: 64
約数和(自身を含む): 3252154752
約数和(自身を除く): 1931348262

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 461, 645, 922, 1290, 1383, 2221, 2305, 2766, 4442, 4610, 6663, 6915, 11105, 13326, 13830, 19823, 22210, 33315, 39646, 59469, 66630, 95503, 99115, 118938, 191006, 198230, 286509, 297345, 477515, 573018, 594690, 955030, 1023881, 1432545, 2047762, 2865090, 3071643, 5119405, 6143286, 10238810, 15358215, 30716430, 44026883, 88053766, 132080649, 220134415, 264161298, 440268830, 660403245, 1320806490]

約数ペア:
[(1, 1320806490), (2, 660403245), (3, 440268830), (5, 264161298), (6, 220134415), (10, 132080649), (15, 88053766), (30, 44026883), (43, 30716430), (86, 15358215), (129, 10238810), (215, 6143286), (258, 5119405), (430, 3071643), (461, 2865090), (645, 2047762), (922, 1432545), (1290, 1023881), (1383, 955030), (2221, 594690), (2305, 573018), (2766, 477515), (4442, 297345), (4610, 286509), (6663, 198230), (6915, 191006), (11105, 118938), (13326, 99115), (13830, 95503), (19823, 66630), (22210, 59469), (33315, 39646)]

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