About the Number

208455390

208455389 ← → 208455391

2進数表記:1100011011001100011011011110

漢数字表記:二億八百四十五万五千三百九十

素因数分解:

2 1 × 3 3 × 5 1 × 11 1 × 13 1 × 5399 1

素因数の和:5439
約数の個数: 128
約数和(自身を含む): 653184000
約数和(自身を除く): 444728610

約数列:
[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 27, 30, 33, 39, 45, 54, 55, 65, 66, 78, 90, 99, 110, 117, 130, 135, 143, 165, 195, 198, 234, 270, 286, 297, 330, 351, 390, 429, 495, 585, 594, 702, 715, 858, 990, 1170, 1287, 1430, 1485, 1755, 2145, 2574, 2970, 3510, 3861, 4290, 5399, 6435, 7722, 10798, 12870, 16197, 19305, 26995, 32394, 38610, 48591, 53990, 59389, 70187, 80985, 97182, 118778, 140374, 145773, 161970, 178167, 210561, 242955, 291546, 296945, 350935, 356334, 421122, 485910, 534501, 593890, 631683, 701870, 728865, 772057, 890835, 1052805, 1069002, 1263366, 1457730, 1544114, 1603503, 1781670, 1895049, 2105610, 2316171, 2672505, 3158415, 3207006, 3790098, 3860285, 4632342, 5345010, 6316830, 6948513, 7720570, 8017515, 9475245, 11580855, 13897026, 16035030, 18950490, 20845539, 23161710, 34742565, 41691078, 69485130, 104227695, 208455390]

約数ペア:
[(1, 208455390), (2, 104227695), (3, 69485130), (5, 41691078), (6, 34742565), (9, 23161710), (10, 20845539), (11, 18950490), (13, 16035030), (15, 13897026), (18, 11580855), (22, 9475245), (26, 8017515), (27, 7720570), (30, 6948513), (33, 6316830), (39, 5345010), (45, 4632342), (54, 3860285), (55, 3790098), (65, 3207006), (66, 3158415), (78, 2672505), (90, 2316171), (99, 2105610), (110, 1895049), (117, 1781670), (130, 1603503), (135, 1544114), (143, 1457730), (165, 1263366), (195, 1069002), (198, 1052805), (234, 890835), (270, 772057), (286, 728865), (297, 701870), (330, 631683), (351, 593890), (390, 534501), (429, 485910), (495, 421122), (585, 356334), (594, 350935), (702, 296945), (715, 291546), (858, 242955), (990, 210561), (1170, 178167), (1287, 161970), (1430, 145773), (1485, 140374), (1755, 118778), (2145, 97182), (2574, 80985), (2970, 70187), (3510, 59389), (3861, 53990), (4290, 48591), (5399, 38610), (6435, 32394), (7722, 26995), (10798, 19305), (12870, 16197)]

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