19201140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{311}}^1$

素因数の和:347

約数の個数: 144

約数和(自身を含む): 68140800

約数和(自身を除く): 48939660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 311, 315, 343, 420, 441, 490, 588, 622, 630, 686, 735, 882, 933, 980, 1029, 1244, 1260, 1372, 1470, 1555, 1715, 1764, 1866, 2058, 2177, 2205, 2799, 2940, 3087, 3110, 3430, 3732, 4116, 4354, 4410, 4665, 5145, 5598, 6174, 6220, 6531, 6860, 8708, 8820, 9330, 10290, 10885, 11196, 12348, 13062, 13995, 15239, 15435, 18660, 19593, 20580, 21770, 26124, 27990, 30478, 30870, 32655, 39186, 43540, 45717, 55980, 60956, 61740, 65310, 76195, 78372, 91434, 97965, 106673, 130620, 137151, 152390, 182868, 195930, 213346, 228585, 274302, 304780, 320019, 391860, 426692, 457170, 533365, 548604, 640038, 685755, 914340, 960057, 1066730, 1280076, 1371510, 1600095, 1920114, 2133460, 2743020, 3200190, 3840228, 4800285, 6400380, 9600570, 19201140]

約数ペア:

[(1, 19201140), (2, 9600570), (3, 6400380), (4, 4800285), (5, 3840228), (6, 3200190), (7, 2743020), (9, 2133460), (10, 1920114), (12, 1600095), (14, 1371510), (15, 1280076), (18, 1066730), (20, 960057), (21, 914340), (28, 685755), (30, 640038), (35, 548604), (36, 533365), (42, 457170), (45, 426692), (49, 391860), (60, 320019), (63, 304780), (70, 274302), (84, 228585), (90, 213346), (98, 195930), (105, 182868), (126, 152390), (140, 137151), (147, 130620), (180, 106673), (196, 97965), (210, 91434), (245, 78372), (252, 76195), (294, 65310), (311, 61740), (315, 60956), (343, 55980), (420, 45717), (441, 43540), (490, 39186), (588, 32655), (622, 30870), (630, 30478), (686, 27990), (735, 26124), (882, 21770), (933, 20580), (980, 19593), (1029, 18660), (1244, 15435), (1260, 15239), (1372, 13995), (1470, 13062), (1555, 12348), (1715, 11196), (1764, 10885), (1866, 10290), (2058, 9330), (2177, 8820), (2205, 8708), (2799, 6860), (2940, 6531), (3087, 6220), (3110, 6174), (3430, 5598), (3732, 5145), (4116, 4665), (4354, 4410)]