19825550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 39841200

約数和(自身を除く): 20015650

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 190, 205, 410, 475, 509, 779, 950, 1018, 1025, 1558, 2050, 2545, 3895, 5090, 7790, 9671, 12725, 19342, 19475, 20869, 25450, 38950, 41738, 48355, 96710, 104345, 208690, 241775, 396511, 483550, 521725, 793022, 1043450, 1982555, 3965110, 9912775, 19825550]

約数ペア:

[(1, 19825550), (2, 9912775), (5, 3965110), (10, 1982555), (19, 1043450), (25, 793022), (38, 521725), (41, 483550), (50, 396511), (82, 241775), (95, 208690), (190, 104345), (205, 96710), (410, 48355), (475, 41738), (509, 38950), (779, 25450), (950, 20869), (1018, 19475), (1025, 19342), (1558, 12725), (2050, 9671), (2545, 7790), (3895, 5090)]