About the Number

131409660

131409659 ← → 131409661

2進数表記:111110101010010011011111100

漢数字表記:一億三千百四十万九千六百六十

素因数分解:

2 2 × 3 1 × 5 1 × 17 1 × 128833 1

素因数の和:128862
約数の個数: 48
約数和(自身を含む): 389594016
約数和(自身を除く): 258184356

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 128833, 257666, 386499, 515332, 644165, 772998, 1288330, 1545996, 1932495, 2190161, 2576660, 3864990, 4380322, 6570483, 7729980, 8760644, 10950805, 13140966, 21901610, 26281932, 32852415, 43803220, 65704830, 131409660]

約数ペア:
[(1, 131409660), (2, 65704830), (3, 43803220), (4, 32852415), (5, 26281932), (6, 21901610), (10, 13140966), (12, 10950805), (15, 8760644), (17, 7729980), (20, 6570483), (30, 4380322), (34, 3864990), (51, 2576660), (60, 2190161), (68, 1932495), (85, 1545996), (102, 1288330), (170, 772998), (204, 644165), (255, 515332), (340, 386499), (510, 257666), (1020, 128833)]

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