201745520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{81349}}^1$

素因数の和:81393

約数の個数: 40

約数和(自身を含む): 484195200

約数和(自身を除く): 282449680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 81349, 162698, 325396, 406745, 650792, 813490, 1301584, 1626980, 2521819, 3253960, 5043638, 6507920, 10087276, 12609095, 20174552, 25218190, 40349104, 50436380, 100872760, 201745520]

約数ペア:

[(1, 201745520), (2, 100872760), (4, 50436380), (5, 40349104), (8, 25218190), (10, 20174552), (16, 12609095), (20, 10087276), (31, 6507920), (40, 5043638), (62, 3253960), (80, 2521819), (124, 1626980), (155, 1301584), (248, 813490), (310, 650792), (496, 406745), (620, 325396), (1240, 162698), (2480, 81349)]