About the Number

1220921880

1220921879 ← → 1220921881

2進数表記:1001000110001011100101000011000

漢数字表記:十二億二千九十二万千八百八十

素因数分解:

2 3 × 3 1 × 5 1 × 23 1 × 442363 1

素因数の和:442400
約数の個数: 64
約数和(自身を含む): 3822024960
約数和(自身を除く): 2601103080

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 442363, 884726, 1327089, 1769452, 2211815, 2654178, 3538904, 4423630, 5308356, 6635445, 8847260, 10174349, 10616712, 13270890, 17694520, 20348698, 26541780, 30523047, 40697396, 50871745, 53083560, 61046094, 81394792, 101743490, 122092188, 152615235, 203486980, 244184376, 305230470, 406973960, 610460940, 1220921880]

約数ペア:
[(1, 1220921880), (2, 610460940), (3, 406973960), (4, 305230470), (5, 244184376), (6, 203486980), (8, 152615235), (10, 122092188), (12, 101743490), (15, 81394792), (20, 61046094), (23, 53083560), (24, 50871745), (30, 40697396), (40, 30523047), (46, 26541780), (60, 20348698), (69, 17694520), (92, 13270890), (115, 10616712), (120, 10174349), (138, 8847260), (184, 6635445), (230, 5308356), (276, 4423630), (345, 3538904), (460, 2654178), (552, 2211815), (690, 1769452), (920, 1327089), (1380, 884726), (2760, 442363)]

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