81162371.000000000

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^2\times {\mathrm{61}}^1$

素因数の和:188

約数の個数: 108

約数和(自身を含む): 283299576

約数和(自身を除く): 182546364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 61, 84, 98, 106, 122, 147, 159, 183, 196, 212, 244, 294, 318, 366, 371, 427, 588, 636, 732, 742, 854, 1113, 1281, 1484, 1708, 2226, 2562, 2597, 2809, 2989, 3233, 4452, 5124, 5194, 5618, 5978, 6466, 7791, 8427, 8967, 9699, 10388, 11236, 11956, 12932, 15582, 16854, 17934, 19398, 19663, 22631, 31164, 33708, 35868, 38796, 39326, 45262, 58989, 67893, 78652, 90524, 117978, 135786, 137641, 158417, 171349, 235956, 271572, 275282, 316834, 342698, 412923, 475251, 514047, 550564, 633668, 685396, 825846, 950502, 1028094, 1199443, 1651692, 1901004, 2056188, 2398886, 3598329, 4797772, 7196658, 8396101, 14393316, 16792202, 25188303, 33584404, 50376606, 100753212]

約数ペア:

[(1, 100753212), (2, 50376606), (3, 33584404), (4, 25188303), (6, 16792202), (7, 14393316), (12, 8396101), (14, 7196658), (21, 4797772), (28, 3598329), (42, 2398886), (49, 2056188), (53, 1901004), (61, 1651692), (84, 1199443), (98, 1028094), (106, 950502), (122, 825846), (147, 685396), (159, 633668), (183, 550564), (196, 514047), (212, 475251), (244, 412923), (294, 342698), (318, 316834), (366, 275282), (371, 271572), (427, 235956), (588, 171349), (636, 158417), (732, 137641), (742, 135786), (854, 117978), (1113, 90524), (1281, 78652), (1484, 67893), (1708, 58989), (2226, 45262), (2562, 39326), (2597, 38796), (2809, 35868), (2989, 33708), (3233, 31164), (4452, 22631), (5124, 19663), (5194, 19398), (5618, 17934), (5978, 16854), (6466, 15582), (7791, 12932), (8427, 11956), (8967, 11236), (9699, 10388)]