20215568940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{13859}}^1$

素因数の和:14052

約数の個数: 192

約数和(自身を含む): 67954360320

約数和(自身を除く): 47738791380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 151, 161, 210, 230, 276, 302, 322, 345, 420, 453, 460, 483, 604, 644, 690, 755, 805, 906, 966, 1057, 1380, 1510, 1610, 1812, 1932, 2114, 2265, 2415, 3020, 3171, 3220, 3473, 4228, 4530, 4830, 5285, 6342, 6946, 9060, 9660, 10419, 10570, 12684, 13859, 13892, 15855, 17365, 20838, 21140, 24311, 27718, 31710, 34730, 41577, 41676, 48622, 52095, 55436, 63420, 69295, 69460, 72933, 83154, 97013, 97244, 104190, 121555, 138590, 145866, 166308, 194026, 207885, 208380, 243110, 277180, 291039, 291732, 318757, 364665, 388052, 415770, 485065, 486220, 582078, 637514, 729330, 831540, 956271, 970130, 1164156, 1275028, 1455195, 1458660, 1593785, 1912542, 1940260, 2092709, 2231299, 2910390, 3187570, 3825084, 4185418, 4462598, 4781355, 5820780, 6278127, 6375140, 6693897, 8370836, 8925196, 9562710, 10463545, 11156495, 12556254, 13387794, 14648963, 19125420, 20927090, 22312990, 25112508, 26775588, 29297926, 31390635, 33469485, 41854180, 43946889, 44625980, 48132307, 58595852, 62781270, 66938970, 73244815, 87893778, 96264614, 125562540, 133877940, 144396921, 146489630, 175787556, 192529228, 219734445, 240661535, 288793842, 292979260, 336926149, 439468890, 481323070, 577587684, 673852298, 721984605, 878937780, 962646140, 1010778447, 1347704596, 1443969210, 1684630745, 2021556894, 2887938420, 3369261490, 4043113788, 5053892235, 6738522980, 10107784470, 20215568940]

約数ペア:

[(1, 20215568940), (2, 10107784470), (3, 6738522980), (4, 5053892235), (5, 4043113788), (6, 3369261490), (7, 2887938420), (10, 2021556894), (12, 1684630745), (14, 1443969210), (15, 1347704596), (20, 1010778447), (21, 962646140), (23, 878937780), (28, 721984605), (30, 673852298), (35, 577587684), (42, 481323070), (46, 439468890), (60, 336926149), (69, 292979260), (70, 288793842), (84, 240661535), (92, 219734445), (105, 192529228), (115, 175787556), (138, 146489630), (140, 144396921), (151, 133877940), (161, 125562540), (210, 96264614), (230, 87893778), (276, 73244815), (302, 66938970), (322, 62781270), (345, 58595852), (420, 48132307), (453, 44625980), (460, 43946889), (483, 41854180), (604, 33469485), (644, 31390635), (690, 29297926), (755, 26775588), (805, 25112508), (906, 22312990), (966, 20927090), (1057, 19125420), (1380, 14648963), (1510, 13387794), (1610, 12556254), (1812, 11156495), (1932, 10463545), (2114, 9562710), (2265, 8925196), (2415, 8370836), (3020, 6693897), (3171, 6375140), (3220, 6278127), (3473, 5820780), (4228, 4781355), (4530, 4462598), (4830, 4185418), (5285, 3825084), (6342, 3187570), (6946, 2910390), (9060, 2231299), (9660, 2092709), (10419, 1940260), (10570, 1912542), (12684, 1593785), (13859, 1458660), (13892, 1455195), (15855, 1275028), (17365, 1164156), (20838, 970130), (21140, 956271), (24311, 831540), (27718, 729330), (31710, 637514), (34730, 582078), (41577, 486220), (41676, 485065), (48622, 415770), (52095, 388052), (55436, 364665), (63420, 318757), (69295, 291732), (69460, 291039), (72933, 277180), (83154, 243110), (97013, 208380), (97244, 207885), (104190, 194026), (121555, 166308), (138590, 145866)]