About the Number

217428225

217428224 ← → 217428226

2進数表記:1100111101011011000100000001

漢数字表記:二億千七百四十二万八千二百二十五

素因数分解:

3 1 × 5 2 × 7 1 × 29 1 × 14281 1

素因数の和:14330
約数の個数: 48
約数和(自身を含む): 425032320
約数和(自身を除く): 207604095

約数列:
[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 525, 609, 725, 1015, 2175, 3045, 5075, 14281, 15225, 42843, 71405, 99967, 214215, 299901, 357025, 414149, 499835, 1071075, 1242447, 1499505, 2070745, 2499175, 2899043, 6212235, 7497525, 8697129, 10353725, 14495215, 31061175, 43485645, 72476075, 217428225]

約数ペア:
[(1, 217428225), (3, 72476075), (5, 43485645), (7, 31061175), (15, 14495215), (21, 10353725), (25, 8697129), (29, 7497525), (35, 6212235), (75, 2899043), (87, 2499175), (105, 2070745), (145, 1499505), (175, 1242447), (203, 1071075), (435, 499835), (525, 414149), (609, 357025), (725, 299901), (1015, 214215), (2175, 99967), (3045, 71405), (5075, 42843), (14281, 15225)]

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