19287280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12689}}^1$

素因数の和:12721

約数の個数: 40

約数和(自身を含む): 47206800

約数和(自身を除く): 27919520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12689, 25378, 50756, 63445, 101512, 126890, 203024, 241091, 253780, 482182, 507560, 964364, 1015120, 1205455, 1928728, 2410910, 3857456, 4821820, 9643640, 19287280]

約数ペア:

[(1, 19287280), (2, 9643640), (4, 4821820), (5, 3857456), (8, 2410910), (10, 1928728), (16, 1205455), (19, 1015120), (20, 964364), (38, 507560), (40, 482182), (76, 253780), (80, 241091), (95, 203024), (152, 126890), (190, 101512), (304, 63445), (380, 50756), (760, 25378), (1520, 12689)]