About the Number

1385980

1385979 ← → 1385981

2進数表記:101010010010111111100

漢数字表記:百三十八万五千九百八十

素因数分解:

2 2 × 5 1 × 23 2 × 131 1

素因数の和:186
約数の個数: 36
約数和(自身を含む): 3065832
約数和(自身を除く): 1679852

約数列:
[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 131, 230, 262, 460, 524, 529, 655, 1058, 1310, 2116, 2620, 2645, 3013, 5290, 6026, 10580, 12052, 15065, 30130, 60260, 69299, 138598, 277196, 346495, 692990, 1385980]

約数ペア:
[(1, 1385980), (2, 692990), (4, 346495), (5, 277196), (10, 138598), (20, 69299), (23, 60260), (46, 30130), (92, 15065), (115, 12052), (131, 10580), (230, 6026), (262, 5290), (460, 3013), (524, 2645), (529, 2620), (655, 2116), (1058, 1310)]

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