81435060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{1319}}^1$

素因数の和:1355

約数の個数: 144

約数和(自身を含む): 288288000

約数和(自身を除く): 206852940

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, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1319, 1372, 1470, 1715, 1764, 2058, 2205, 2638, 2940, 3087, 3430, 3957, 4116, 4410, 5145, 5276, 6174, 6595, 6860, 7914, 8820, 9233, 10290, 11871, 12348, 13190, 15435, 15828, 18466, 19785, 20580, 23742, 26380, 27699, 30870, 36932, 39570, 46165, 47484, 55398, 59355, 61740, 64631, 79140, 83097, 92330, 110796, 118710, 129262, 138495, 166194, 184660, 193893, 237420, 258524, 276990, 323155, 332388, 387786, 415485, 452417, 553980, 581679, 646310, 775572, 830970, 904834, 969465, 1163358, 1292620, 1357251, 1661940, 1809668, 1938930, 2262085, 2326716, 2714502, 2908395, 3877860, 4071753, 4524170, 5429004, 5816790, 6786255, 8143506, 9048340, 11633580, 13572510, 16287012, 20358765, 27145020, 40717530, 81435060]

約数ペア:

[(1, 81435060), (2, 40717530), (3, 27145020), (4, 20358765), (5, 16287012), (6, 13572510), (7, 11633580), (9, 9048340), (10, 8143506), (12, 6786255), (14, 5816790), (15, 5429004), (18, 4524170), (20, 4071753), (21, 3877860), (28, 2908395), (30, 2714502), (35, 2326716), (36, 2262085), (42, 1938930), (45, 1809668), (49, 1661940), (60, 1357251), (63, 1292620), (70, 1163358), (84, 969465), (90, 904834), (98, 830970), (105, 775572), (126, 646310), (140, 581679), (147, 553980), (180, 452417), (196, 415485), (210, 387786), (245, 332388), (252, 323155), (294, 276990), (315, 258524), (343, 237420), (420, 193893), (441, 184660), (490, 166194), (588, 138495), (630, 129262), (686, 118710), (735, 110796), (882, 92330), (980, 83097), (1029, 79140), (1260, 64631), (1319, 61740), (1372, 59355), (1470, 55398), (1715, 47484), (1764, 46165), (2058, 39570), (2205, 36932), (2638, 30870), (2940, 27699), (3087, 26380), (3430, 23742), (3957, 20580), (4116, 19785), (4410, 18466), (5145, 15828), (5276, 15435), (6174, 13190), (6595, 12348), (6860, 11871), (7914, 10290), (8820, 9233)]