208753550

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1421

約数の個数: 48

約数和(自身を含む): 403099200

約数和(自身を除く): 194345650

約数列:

[1, 2, 5, 10, 25, 41, 50, 79, 82, 158, 205, 395, 410, 790, 1025, 1289, 1975, 2050, 2578, 3239, 3950, 6445, 6478, 12890, 16195, 32225, 32390, 52849, 64450, 80975, 101831, 105698, 161950, 203662, 264245, 509155, 528490, 1018310, 1321225, 2545775, 2642450, 4175071, 5091550, 8350142, 20875355, 41750710, 104376775, 208753550]

約数ペア:

[(1, 208753550), (2, 104376775), (5, 41750710), (10, 20875355), (25, 8350142), (41, 5091550), (50, 4175071), (79, 2642450), (82, 2545775), (158, 1321225), (205, 1018310), (395, 528490), (410, 509155), (790, 264245), (1025, 203662), (1289, 161950), (1975, 105698), (2050, 101831), (2578, 80975), (3239, 64450), (3950, 52849), (6445, 32390), (6478, 32225), (12890, 16195)]