81724356

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{15443}}^1$

素因数の和:15470

約数の個数: 72

約数和(自身を含む): 246486240

約数和(自身を除く): 164761884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 5292, 15443, 30886, 46329, 61772, 92658, 108101, 138987, 185316, 216202, 277974, 324303, 416961, 432404, 555948, 648606, 756707, 833922, 972909, 1297212, 1513414, 1667844, 1945818, 2270121, 2918727, 3026828, 3891636, 4540242, 5837454, 6810363, 9080484, 11674908, 13620726, 20431089, 27241452, 40862178, 81724356]

約数ペア:

[(1, 81724356), (2, 40862178), (3, 27241452), (4, 20431089), (6, 13620726), (7, 11674908), (9, 9080484), (12, 6810363), (14, 5837454), (18, 4540242), (21, 3891636), (27, 3026828), (28, 2918727), (36, 2270121), (42, 1945818), (49, 1667844), (54, 1513414), (63, 1297212), (84, 972909), (98, 833922), (108, 756707), (126, 648606), (147, 555948), (189, 432404), (196, 416961), (252, 324303), (294, 277974), (378, 216202), (441, 185316), (588, 138987), (756, 108101), (882, 92658), (1323, 61772), (1764, 46329), (2646, 30886), (5292, 15443)]