209929520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{84649}}^1$

素因数の和:84693

約数の個数: 40

約数和(自身を含む): 503836800

約数和(自身を除く): 293907280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 84649, 169298, 338596, 423245, 677192, 846490, 1354384, 1692980, 2624119, 3385960, 5248238, 6771920, 10496476, 13120595, 20992952, 26241190, 41985904, 52482380, 104964760, 209929520]

約数ペア:

[(1, 209929520), (2, 104964760), (4, 52482380), (5, 41985904), (8, 26241190), (10, 20992952), (16, 13120595), (20, 10496476), (31, 6771920), (40, 5248238), (62, 3385960), (80, 2624119), (124, 1692980), (155, 1354384), (248, 846490), (310, 677192), (496, 423245), (620, 338596), (1240, 169298), (2480, 84649)]