About the Number

1230390840

1230390839 ← → 1230390841

2進数表記:1001001010101100100011000111000

漢数字表記:十二億三千三十九万八百四十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 1464751 1

素因数の和:1464772
約数の個数: 64
約数和(自身を含む): 4218485760
約数和(自身を除く): 2988094920

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1464751, 2929502, 4394253, 5859004, 7323755, 8788506, 10253257, 11718008, 14647510, 17577012, 20506514, 21971265, 29295020, 30759771, 35154024, 41013028, 43942530, 51266285, 58590040, 61519542, 82026056, 87885060, 102532570, 123039084, 153798855, 175770120, 205065140, 246078168, 307597710, 410130280, 615195420, 1230390840]

約数ペア:
[(1, 1230390840), (2, 615195420), (3, 410130280), (4, 307597710), (5, 246078168), (6, 205065140), (7, 175770120), (8, 153798855), (10, 123039084), (12, 102532570), (14, 87885060), (15, 82026056), (20, 61519542), (21, 58590040), (24, 51266285), (28, 43942530), (30, 41013028), (35, 35154024), (40, 30759771), (42, 29295020), (56, 21971265), (60, 20506514), (70, 17577012), (84, 14647510), (105, 11718008), (120, 10253257), (140, 8788506), (168, 7323755), (210, 5859004), (280, 4394253), (420, 2929502), (840, 1464751)]

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