172080321

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 288798720

約数和(自身を除く): 116718399

約数列:

[1, 3, 7, 19, 21, 41, 57, 67, 123, 133, 157, 201, 287, 399, 469, 471, 779, 861, 1099, 1273, 1407, 2337, 2747, 2983, 3297, 3819, 5453, 6437, 8241, 8911, 8949, 10519, 16359, 19229, 19311, 20881, 26733, 31557, 45059, 52193, 57687, 62643, 73633, 122303, 135177, 156579, 199861, 220899, 365351, 366909, 431279, 599583, 856121, 1096053, 1293837, 1399027, 2568363, 3018953, 4197081, 8194301, 9056859, 24582903, 57360107, 172080321]

約数ペア:

[(1, 172080321), (3, 57360107), (7, 24582903), (19, 9056859), (21, 8194301), (41, 4197081), (57, 3018953), (67, 2568363), (123, 1399027), (133, 1293837), (157, 1096053), (201, 856121), (287, 599583), (399, 431279), (469, 366909), (471, 365351), (779, 220899), (861, 199861), (1099, 156579), (1273, 135177), (1407, 122303), (2337, 73633), (2747, 62643), (2983, 57687), (3297, 52193), (3819, 45059), (5453, 31557), (6437, 26733), (8241, 20881), (8911, 19311), (8949, 19229), (10519, 16359)]