201519985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 265392000

約数和(自身を除く): 63872015

約数列:

[1, 5, 19, 29, 95, 145, 193, 379, 551, 965, 1895, 2755, 3667, 5597, 7201, 10991, 18335, 27985, 36005, 54955, 73147, 106343, 208829, 365735, 531715, 1044145, 1389793, 2121263, 6948965, 10606315, 40303997, 201519985]

約数ペア:

[(1, 201519985), (5, 40303997), (19, 10606315), (29, 6948965), (95, 2121263), (145, 1389793), (193, 1044145), (379, 531715), (551, 365735), (965, 208829), (1895, 106343), (2755, 73147), (3667, 54955), (5597, 36005), (7201, 27985), (10991, 18335)]