About the Number

28889210

28889209 ← → 28889211

2進数表記:1101110001101000001111010

漢数字表記:二千八百八十八万九千二百十

素因数分解:

2 1 × 5 1 × 7 1 × 31 1 × 13313 1

素因数の和:13358
約数の個数: 32
約数和(自身を含む): 61350912
約数和(自身を除く): 32461702

約数列:
[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 13313, 26626, 66565, 93191, 133130, 186382, 412703, 465955, 825406, 931910, 2063515, 2888921, 4127030, 5777842, 14444605, 28889210]

約数ペア:
[(1, 28889210), (2, 14444605), (5, 5777842), (7, 4127030), (10, 2888921), (14, 2063515), (31, 931910), (35, 825406), (62, 465955), (70, 412703), (155, 186382), (217, 133130), (310, 93191), (434, 66565), (1085, 26626), (2170, 13313)]

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