128545620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1901}}^1$

素因数の和:1950

約数の個数: 144

約数和(自身を含む): 437125248

約数和(自身を除く): 308579628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 420, 460, 483, 490, 588, 644, 690, 735, 805, 966, 980, 1127, 1380, 1470, 1610, 1901, 1932, 2254, 2415, 2940, 3220, 3381, 3802, 4508, 4830, 5635, 5703, 6762, 7604, 9505, 9660, 11270, 11406, 13307, 13524, 16905, 19010, 22540, 22812, 26614, 28515, 33810, 38020, 39921, 43723, 53228, 57030, 66535, 67620, 79842, 87446, 93149, 114060, 131169, 133070, 159684, 174892, 186298, 199605, 218615, 262338, 266140, 279447, 306061, 372596, 399210, 437230, 465745, 524676, 558894, 612122, 655845, 798420, 874460, 918183, 931490, 1117788, 1224244, 1311690, 1397235, 1530305, 1836366, 1862980, 2142427, 2623380, 2794470, 3060610, 3672732, 4284854, 4590915, 5588940, 6121220, 6427281, 8569708, 9181830, 10712135, 12854562, 18363660, 21424270, 25709124, 32136405, 42848540, 64272810, 128545620]

約数ペア:

[(1, 128545620), (2, 64272810), (3, 42848540), (4, 32136405), (5, 25709124), (6, 21424270), (7, 18363660), (10, 12854562), (12, 10712135), (14, 9181830), (15, 8569708), (20, 6427281), (21, 6121220), (23, 5588940), (28, 4590915), (30, 4284854), (35, 3672732), (42, 3060610), (46, 2794470), (49, 2623380), (60, 2142427), (69, 1862980), (70, 1836366), (84, 1530305), (92, 1397235), (98, 1311690), (105, 1224244), (115, 1117788), (138, 931490), (140, 918183), (147, 874460), (161, 798420), (196, 655845), (210, 612122), (230, 558894), (245, 524676), (276, 465745), (294, 437230), (322, 399210), (345, 372596), (420, 306061), (460, 279447), (483, 266140), (490, 262338), (588, 218615), (644, 199605), (690, 186298), (735, 174892), (805, 159684), (966, 133070), (980, 131169), (1127, 114060), (1380, 93149), (1470, 87446), (1610, 79842), (1901, 67620), (1932, 66535), (2254, 57030), (2415, 53228), (2940, 43723), (3220, 39921), (3381, 38020), (3802, 33810), (4508, 28515), (4830, 26614), (5635, 22812), (5703, 22540), (6762, 19010), (7604, 16905), (9505, 13524), (9660, 13307), (11270, 11406)]