20173476645

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{1619}}^1\times {\mathrm{5651}}^1$

素因数の和:7295

約数の個数: 72

約数和(自身を含む): 40708643040

約数和(自身を除く): 20535166395

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 1619, 2205, 4857, 5651, 8095, 11333, 14571, 16953, 24285, 28255, 33999, 39557, 50859, 56665, 72855, 79331, 84765, 101997, 118671, 169995, 197785, 237993, 254295, 276899, 356013, 396655, 509985, 593355, 713979, 830697, 1189965, 1384495, 1780065, 2492091, 3569895, 4153485, 9148969, 12460455, 27446907, 45744845, 64042783, 82340721, 137234535, 192128349, 320213915, 411703605, 448299481, 576385047, 960641745, 1344898443, 2241497405, 2881925235, 4034695329, 6724492215, 20173476645]

約数ペア:

[(1, 20173476645), (3, 6724492215), (5, 4034695329), (7, 2881925235), (9, 2241497405), (15, 1344898443), (21, 960641745), (35, 576385047), (45, 448299481), (49, 411703605), (63, 320213915), (105, 192128349), (147, 137234535), (245, 82340721), (315, 64042783), (441, 45744845), (735, 27446907), (1619, 12460455), (2205, 9148969), (4857, 4153485), (5651, 3569895), (8095, 2492091), (11333, 1780065), (14571, 1384495), (16953, 1189965), (24285, 830697), (28255, 713979), (33999, 593355), (39557, 509985), (50859, 396655), (56665, 356013), (72855, 276899), (79331, 254295), (84765, 237993), (101997, 197785), (118671, 169995)]