About the Number

20985210

20985209 ← → 20985211

2進数表記:1010000000011010101111010

漢数字表記:二千九十八万五千二百十

素因数分解:

2 1 × 3 3 × 5 1 × 77723 1

素因数の和:77739
約数の個数: 32
約数和(自身を含む): 55961280
約数和(自身を除く): 34976070

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 77723, 155446, 233169, 388615, 466338, 699507, 777230, 1165845, 1399014, 2098521, 2331690, 3497535, 4197042, 6995070, 10492605, 20985210]

約数ペア:
[(1, 20985210), (2, 10492605), (3, 6995070), (5, 4197042), (6, 3497535), (9, 2331690), (10, 2098521), (15, 1399014), (18, 1165845), (27, 777230), (30, 699507), (45, 466338), (54, 388615), (90, 233169), (135, 155446), (270, 77723)]

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