81729816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 243233280

約数和(自身を除く): 161503464

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 53, 56, 67, 84, 106, 134, 137, 159, 168, 201, 212, 268, 274, 318, 371, 402, 411, 424, 469, 536, 548, 636, 742, 804, 822, 938, 959, 1096, 1113, 1272, 1407, 1484, 1608, 1644, 1876, 1918, 2226, 2814, 2877, 2968, 3288, 3551, 3752, 3836, 4452, 5628, 5754, 7102, 7261, 7672, 8904, 9179, 10653, 11256, 11508, 14204, 14522, 18358, 21306, 21783, 23016, 24857, 27537, 28408, 29044, 36716, 42612, 43566, 49714, 50827, 55074, 58088, 64253, 73432, 74571, 85224, 87132, 99428, 101654, 110148, 128506, 149142, 152481, 174264, 192759, 198856, 203308, 220296, 257012, 298284, 304962, 385518, 406616, 486487, 514024, 596568, 609924, 771036, 972974, 1219848, 1459461, 1542072, 1945948, 2918922, 3405409, 3891896, 5837844, 6810818, 10216227, 11675688, 13621636, 20432454, 27243272, 40864908, 81729816]

約数ペア:

[(1, 81729816), (2, 40864908), (3, 27243272), (4, 20432454), (6, 13621636), (7, 11675688), (8, 10216227), (12, 6810818), (14, 5837844), (21, 3891896), (24, 3405409), (28, 2918922), (42, 1945948), (53, 1542072), (56, 1459461), (67, 1219848), (84, 972974), (106, 771036), (134, 609924), (137, 596568), (159, 514024), (168, 486487), (201, 406616), (212, 385518), (268, 304962), (274, 298284), (318, 257012), (371, 220296), (402, 203308), (411, 198856), (424, 192759), (469, 174264), (536, 152481), (548, 149142), (636, 128506), (742, 110148), (804, 101654), (822, 99428), (938, 87132), (959, 85224), (1096, 74571), (1113, 73432), (1272, 64253), (1407, 58088), (1484, 55074), (1608, 50827), (1644, 49714), (1876, 43566), (1918, 42612), (2226, 36716), (2814, 29044), (2877, 28408), (2968, 27537), (3288, 24857), (3551, 23016), (3752, 21783), (3836, 21306), (4452, 18358), (5628, 14522), (5754, 14204), (7102, 11508), (7261, 11256), (7672, 10653), (8904, 9179)]