161838180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 216

約数和(自身を含む): 582603840

約数和(自身を除く): 420765660

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, 59, 60, 63, 70, 84, 90, 98, 105, 118, 126, 140, 147, 177, 180, 196, 210, 236, 245, 252, 294, 295, 311, 315, 354, 413, 420, 441, 490, 531, 588, 590, 622, 630, 708, 735, 826, 882, 885, 933, 980, 1062, 1180, 1239, 1244, 1260, 1470, 1555, 1652, 1764, 1770, 1866, 2065, 2124, 2177, 2205, 2478, 2655, 2799, 2891, 2940, 3110, 3540, 3717, 3732, 4130, 4354, 4410, 4665, 4956, 5310, 5598, 5782, 6195, 6220, 6531, 7434, 8260, 8673, 8708, 8820, 9330, 10620, 10885, 11196, 11564, 12390, 13062, 13995, 14455, 14868, 15239, 17346, 18349, 18585, 18660, 19593, 21770, 24780, 26019, 26124, 27990, 28910, 30478, 32655, 34692, 36698, 37170, 39186, 43365, 43540, 45717, 52038, 55047, 55980, 57820, 60956, 65310, 73396, 74340, 76195, 78372, 86730, 91434, 91745, 97965, 104076, 110094, 128443, 130095, 130620, 137151, 152390, 165141, 173460, 182868, 183490, 195930, 220188, 228585, 256886, 260190, 274302, 275235, 304780, 330282, 366980, 385329, 391860, 457170, 513772, 520380, 548604, 550470, 642215, 660564, 685755, 770658, 825705, 899101, 914340, 1100940, 1155987, 1284430, 1371510, 1541316, 1651410, 1798202, 1926645, 2311974, 2568860, 2697303, 2743020, 3302820, 3596404, 3853290, 4495505, 4623948, 5394606, 5779935, 7706580, 8091909, 8991010, 10789212, 11559870, 13486515, 16183818, 17982020, 23119740, 26973030, 32367636, 40459545, 53946060, 80919090, 161838180]

約数ペア:

[(1, 161838180), (2, 80919090), (3, 53946060), (4, 40459545), (5, 32367636), (6, 26973030), (7, 23119740), (9, 17982020), (10, 16183818), (12, 13486515), (14, 11559870), (15, 10789212), (18, 8991010), (20, 8091909), (21, 7706580), (28, 5779935), (30, 5394606), (35, 4623948), (36, 4495505), (42, 3853290), (45, 3596404), (49, 3302820), (59, 2743020), (60, 2697303), (63, 2568860), (70, 2311974), (84, 1926645), (90, 1798202), (98, 1651410), (105, 1541316), (118, 1371510), (126, 1284430), (140, 1155987), (147, 1100940), (177, 914340), (180, 899101), (196, 825705), (210, 770658), (236, 685755), (245, 660564), (252, 642215), (294, 550470), (295, 548604), (311, 520380), (315, 513772), (354, 457170), (413, 391860), (420, 385329), (441, 366980), (490, 330282), (531, 304780), (588, 275235), (590, 274302), (622, 260190), (630, 256886), (708, 228585), (735, 220188), (826, 195930), (882, 183490), (885, 182868), (933, 173460), (980, 165141), (1062, 152390), (1180, 137151), (1239, 130620), (1244, 130095), (1260, 128443), (1470, 110094), (1555, 104076), (1652, 97965), (1764, 91745), (1770, 91434), (1866, 86730), (2065, 78372), (2124, 76195), (2177, 74340), (2205, 73396), (2478, 65310), (2655, 60956), (2799, 57820), (2891, 55980), (2940, 55047), (3110, 52038), (3540, 45717), (3717, 43540), (3732, 43365), (4130, 39186), (4354, 37170), (4410, 36698), (4665, 34692), (4956, 32655), (5310, 30478), (5598, 28910), (5782, 27990), (6195, 26124), (6220, 26019), (6531, 24780), (7434, 21770), (8260, 19593), (8673, 18660), (8708, 18585), (8820, 18349), (9330, 17346), (10620, 15239), (10885, 14868), (11196, 14455), (11564, 13995), (12390, 13062)]