19491036380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{243091}}^1$

素因数の和:243330

約数の個数: 48

約数和(自身を含む): 43289823360

約数和(自身を除く): 23798786980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 380, 422, 844, 1055, 2110, 4009, 4220, 8018, 16036, 20045, 40090, 80180, 243091, 486182, 972364, 1215455, 2430910, 4618729, 4861820, 9237458, 18474916, 23093645, 46187290, 51292201, 92374580, 102584402, 205168804, 256461005, 512922010, 974551819, 1025844020, 1949103638, 3898207276, 4872759095, 9745518190, 19491036380]

約数ペア:

[(1, 19491036380), (2, 9745518190), (4, 4872759095), (5, 3898207276), (10, 1949103638), (19, 1025844020), (20, 974551819), (38, 512922010), (76, 256461005), (95, 205168804), (190, 102584402), (211, 92374580), (380, 51292201), (422, 46187290), (844, 23093645), (1055, 18474916), (2110, 9237458), (4009, 4861820), (4220, 4618729), (8018, 2430910), (16036, 1215455), (20045, 972364), (40090, 486182), (80180, 243091)]