About the Number

989330640

989330639 ← → 989330641

2進数表記:111010111101111111110011010000

漢数字表記:九億八千九百三十三万六百四十

素因数分解:

2 4 × 3 1 × 5 1 × 17 1 × 242483 1

素因数の和:242516
約数の個数: 80
約数和(自身を含む): 3247345728
約数和(自身を除く): 2258015088

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 242483, 484966, 727449, 969932, 1212415, 1454898, 1939864, 2424830, 2909796, 3637245, 3879728, 4122211, 4849660, 5819592, 7274490, 8244422, 9699320, 11639184, 12366633, 14548980, 16488844, 19398640, 20611055, 24733266, 29097960, 32977688, 41222110, 49466532, 58195920, 61833165, 65955376, 82444220, 98933064, 123666330, 164888440, 197866128, 247332660, 329776880, 494665320, 989330640]

約数ペア:
[(1, 989330640), (2, 494665320), (3, 329776880), (4, 247332660), (5, 197866128), (6, 164888440), (8, 123666330), (10, 98933064), (12, 82444220), (15, 65955376), (16, 61833165), (17, 58195920), (20, 49466532), (24, 41222110), (30, 32977688), (34, 29097960), (40, 24733266), (48, 20611055), (51, 19398640), (60, 16488844), (68, 14548980), (80, 12366633), (85, 11639184), (102, 9699320), (120, 8244422), (136, 7274490), (170, 5819592), (204, 4849660), (240, 4122211), (255, 3879728), (272, 3637245), (340, 2909796), (408, 2424830), (510, 1939864), (680, 1454898), (816, 1212415), (1020, 969932), (1360, 727449), (2040, 484966), (4080, 242483)]

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