209219920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1053

約数の個数: 160

約数和(自身を含む): 619960320

約数和(自身を除く): 410740400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 80, 91, 104, 112, 116, 130, 140, 145, 182, 203, 208, 232, 260, 280, 290, 364, 377, 406, 455, 464, 520, 560, 580, 728, 754, 812, 910, 991, 1015, 1040, 1160, 1456, 1508, 1624, 1820, 1885, 1982, 2030, 2320, 2639, 3016, 3248, 3640, 3770, 3964, 4060, 4955, 5278, 6032, 6937, 7280, 7540, 7928, 8120, 9910, 10556, 12883, 13195, 13874, 15080, 15856, 16240, 19820, 21112, 25766, 26390, 27748, 28739, 30160, 34685, 39640, 42224, 51532, 52780, 55496, 57478, 64415, 69370, 79280, 90181, 103064, 105560, 110992, 114956, 128830, 138740, 143695, 180362, 201173, 206128, 211120, 229912, 257660, 277480, 287390, 360724, 373607, 402346, 450905, 459824, 515320, 554960, 574780, 721448, 747214, 804692, 901810, 1005865, 1030640, 1149560, 1442896, 1494428, 1609384, 1803620, 1868035, 2011730, 2299120, 2615249, 2988856, 3218768, 3607240, 3736070, 4023460, 5230498, 5977712, 7214480, 7472140, 8046920, 10460996, 13076245, 14944280, 16093840, 20921992, 26152490, 29888560, 41843984, 52304980, 104609960, 209219920]

約数ペア:

[(1, 209219920), (2, 104609960), (4, 52304980), (5, 41843984), (7, 29888560), (8, 26152490), (10, 20921992), (13, 16093840), (14, 14944280), (16, 13076245), (20, 10460996), (26, 8046920), (28, 7472140), (29, 7214480), (35, 5977712), (40, 5230498), (52, 4023460), (56, 3736070), (58, 3607240), (65, 3218768), (70, 2988856), (80, 2615249), (91, 2299120), (104, 2011730), (112, 1868035), (116, 1803620), (130, 1609384), (140, 1494428), (145, 1442896), (182, 1149560), (203, 1030640), (208, 1005865), (232, 901810), (260, 804692), (280, 747214), (290, 721448), (364, 574780), (377, 554960), (406, 515320), (455, 459824), (464, 450905), (520, 402346), (560, 373607), (580, 360724), (728, 287390), (754, 277480), (812, 257660), (910, 229912), (991, 211120), (1015, 206128), (1040, 201173), (1160, 180362), (1456, 143695), (1508, 138740), (1624, 128830), (1820, 114956), (1885, 110992), (1982, 105560), (2030, 103064), (2320, 90181), (2639, 79280), (3016, 69370), (3248, 64415), (3640, 57478), (3770, 55496), (3964, 52780), (4060, 51532), (4955, 42224), (5278, 39640), (6032, 34685), (6937, 30160), (7280, 28739), (7540, 27748), (7928, 26390), (8120, 25766), (9910, 21112), (10556, 19820), (12883, 16240), (13195, 15856), (13874, 15080)]