About the Number

81982980

81982979 ← → 81982981

2進数表記:100111000101111011000000100

漢数字表記:八千百九十八万二千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 455461 1

素因数の和:455476
約数の個数: 36
約数和(自身を含む): 248682252
約数和(自身を除く): 166699272

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 455461, 910922, 1366383, 1821844, 2277305, 2732766, 4099149, 4554610, 5465532, 6831915, 8198298, 9109220, 13663830, 16396596, 20495745, 27327660, 40991490, 81982980]

約数ペア:
[(1, 81982980), (2, 40991490), (3, 27327660), (4, 20495745), (5, 16396596), (6, 13663830), (9, 9109220), (10, 8198298), (12, 6831915), (15, 5465532), (18, 4554610), (20, 4099149), (30, 2732766), (36, 2277305), (45, 1821844), (60, 1366383), (90, 910922), (180, 455461)]

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