About the Number

30007980

30007979 ← → 30007981

2進数表記:1110010011110001010101100

漢数字表記:三千万七千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 43 1 × 3877 1

素因数の和:3935
約数の個数: 72
約数和(自身を含む): 93165072
約数和(自身を除く): 63157092

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 3877, 7740, 7754, 11631, 15508, 19385, 23262, 34893, 38770, 46524, 58155, 69786, 77540, 116310, 139572, 166711, 174465, 232620, 333422, 348930, 500133, 666844, 697860, 833555, 1000266, 1500399, 1667110, 2000532, 2500665, 3000798, 3334220, 5001330, 6001596, 7501995, 10002660, 15003990, 30007980]

約数ペア:
[(1, 30007980), (2, 15003990), (3, 10002660), (4, 7501995), (5, 6001596), (6, 5001330), (9, 3334220), (10, 3000798), (12, 2500665), (15, 2000532), (18, 1667110), (20, 1500399), (30, 1000266), (36, 833555), (43, 697860), (45, 666844), (60, 500133), (86, 348930), (90, 333422), (129, 232620), (172, 174465), (180, 166711), (215, 139572), (258, 116310), (387, 77540), (430, 69786), (516, 58155), (645, 46524), (774, 38770), (860, 34893), (1290, 23262), (1548, 19385), (1935, 15508), (2580, 11631), (3870, 7754), (3877, 7740)]

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