20775564

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 56412720

約数和(自身を除く): 35637156

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 83, 102, 153, 166, 204, 249, 306, 332, 409, 498, 612, 747, 818, 996, 1227, 1411, 1494, 1636, 2454, 2822, 2988, 3681, 4233, 4908, 5644, 6953, 7362, 8466, 12699, 13906, 14724, 16932, 20859, 25398, 27812, 33947, 41718, 50796, 62577, 67894, 83436, 101841, 125154, 135788, 203682, 250308, 305523, 407364, 577099, 611046, 1154198, 1222092, 1731297, 2308396, 3462594, 5193891, 6925188, 10387782, 20775564]

約数ペア:

[(1, 20775564), (2, 10387782), (3, 6925188), (4, 5193891), (6, 3462594), (9, 2308396), (12, 1731297), (17, 1222092), (18, 1154198), (34, 611046), (36, 577099), (51, 407364), (68, 305523), (83, 250308), (102, 203682), (153, 135788), (166, 125154), (204, 101841), (249, 83436), (306, 67894), (332, 62577), (409, 50796), (498, 41718), (612, 33947), (747, 27812), (818, 25398), (996, 20859), (1227, 16932), (1411, 14724), (1494, 13906), (1636, 12699), (2454, 8466), (2822, 7362), (2988, 6953), (3681, 5644), (4233, 4908)]