About the Number

231870820

231870819 ← → 231870821

2進数表記:1101110100100001000101100100

漢数字表記:二億三千百八十七万八百二十

素因数分解:

2 2 × 5 1 × 17 1 × 23 1 × 149 1 × 199 1

素因数の和:397
約数の個数: 96
約数和(自身を含む): 544320000
約数和(自身を除く): 312449180

約数列:
[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 149, 170, 199, 230, 298, 340, 391, 398, 460, 596, 745, 782, 796, 995, 1490, 1564, 1955, 1990, 2533, 2980, 3383, 3427, 3910, 3980, 4577, 5066, 6766, 6854, 7820, 9154, 10132, 12665, 13532, 13708, 16915, 17135, 18308, 22885, 25330, 29651, 33830, 34270, 45770, 50660, 58259, 59302, 67660, 68540, 77809, 91540, 116518, 118604, 148255, 155618, 233036, 291295, 296510, 311236, 389045, 504067, 582590, 593020, 681973, 778090, 1008134, 1165180, 1363946, 1556180, 2016268, 2520335, 2727892, 3409865, 5040670, 6819730, 10081340, 11593541, 13639460, 23187082, 46374164, 57967705, 115935410, 231870820]

約数ペア:
[(1, 231870820), (2, 115935410), (4, 57967705), (5, 46374164), (10, 23187082), (17, 13639460), (20, 11593541), (23, 10081340), (34, 6819730), (46, 5040670), (68, 3409865), (85, 2727892), (92, 2520335), (115, 2016268), (149, 1556180), (170, 1363946), (199, 1165180), (230, 1008134), (298, 778090), (340, 681973), (391, 593020), (398, 582590), (460, 504067), (596, 389045), (745, 311236), (782, 296510), (796, 291295), (995, 233036), (1490, 155618), (1564, 148255), (1955, 118604), (1990, 116518), (2533, 91540), (2980, 77809), (3383, 68540), (3427, 67660), (3910, 59302), (3980, 58259), (4577, 50660), (5066, 45770), (6766, 34270), (6854, 33830), (7820, 29651), (9154, 25330), (10132, 22885), (12665, 18308), (13532, 17135), (13708, 16915)]

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