9401960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 22680000

約数和(自身を除く): 13278040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 139, 152, 178, 190, 278, 356, 380, 445, 556, 695, 712, 760, 890, 1112, 1390, 1691, 1780, 2641, 2780, 3382, 3560, 5282, 5560, 6764, 8455, 10564, 12371, 13205, 13528, 16910, 21128, 24742, 26410, 33820, 49484, 52820, 61855, 67640, 98968, 105640, 123710, 235049, 247420, 470098, 494840, 940196, 1175245, 1880392, 2350490, 4700980, 9401960]

約数ペア:

[(1, 9401960), (2, 4700980), (4, 2350490), (5, 1880392), (8, 1175245), (10, 940196), (19, 494840), (20, 470098), (38, 247420), (40, 235049), (76, 123710), (89, 105640), (95, 98968), (139, 67640), (152, 61855), (178, 52820), (190, 49484), (278, 33820), (356, 26410), (380, 24742), (445, 21128), (556, 16910), (695, 13528), (712, 13205), (760, 12371), (890, 10564), (1112, 8455), (1390, 6764), (1691, 5560), (1780, 5282), (2641, 3560), (2780, 3382)]