219905140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:498

約数の個数: 144

約数和(自身を含む): 594037584

約数和(自身を除く): 374132444

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 41, 49, 52, 65, 70, 82, 91, 98, 130, 140, 164, 182, 196, 205, 245, 260, 287, 364, 410, 421, 455, 490, 533, 574, 637, 820, 842, 910, 980, 1066, 1148, 1274, 1435, 1684, 1820, 2009, 2105, 2132, 2548, 2665, 2870, 2947, 3185, 3731, 4018, 4210, 5330, 5473, 5740, 5894, 6370, 7462, 8036, 8420, 10045, 10660, 10946, 11788, 12740, 14735, 14924, 17261, 18655, 20090, 20629, 21892, 26117, 27365, 29470, 34522, 37310, 38311, 40180, 41258, 52234, 54730, 58940, 69044, 74620, 76622, 82516, 86305, 103145, 104468, 109460, 120827, 130585, 153244, 172610, 191555, 206290, 224393, 241654, 261170, 268177, 345220, 383110, 412580, 448786, 483308, 522340, 536354, 604135, 766220, 845789, 897572, 1072708, 1121965, 1208270, 1340885, 1570751, 1691578, 2243930, 2416540, 2681770, 3141502, 3383156, 4228945, 4487860, 5363540, 6283004, 7853755, 8457890, 10995257, 15707510, 16915780, 21990514, 31415020, 43981028, 54976285, 109952570, 219905140]

約数ペア:

[(1, 219905140), (2, 109952570), (4, 54976285), (5, 43981028), (7, 31415020), (10, 21990514), (13, 16915780), (14, 15707510), (20, 10995257), (26, 8457890), (28, 7853755), (35, 6283004), (41, 5363540), (49, 4487860), (52, 4228945), (65, 3383156), (70, 3141502), (82, 2681770), (91, 2416540), (98, 2243930), (130, 1691578), (140, 1570751), (164, 1340885), (182, 1208270), (196, 1121965), (205, 1072708), (245, 897572), (260, 845789), (287, 766220), (364, 604135), (410, 536354), (421, 522340), (455, 483308), (490, 448786), (533, 412580), (574, 383110), (637, 345220), (820, 268177), (842, 261170), (910, 241654), (980, 224393), (1066, 206290), (1148, 191555), (1274, 172610), (1435, 153244), (1684, 130585), (1820, 120827), (2009, 109460), (2105, 104468), (2132, 103145), (2548, 86305), (2665, 82516), (2870, 76622), (2947, 74620), (3185, 69044), (3731, 58940), (4018, 54730), (4210, 52234), (5330, 41258), (5473, 40180), (5740, 38311), (5894, 37310), (6370, 34522), (7462, 29470), (8036, 27365), (8420, 26117), (10045, 21892), (10660, 20629), (10946, 20090), (11788, 18655), (12740, 17261), (14735, 14924)]