19095380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1680

約数の個数: 48

約数和(自身を含む): 43599360

約数和(自身を除く): 24503980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1621, 2356, 2945, 3242, 5890, 6484, 8105, 11780, 16210, 30799, 32420, 50251, 61598, 100502, 123196, 153995, 201004, 251255, 307990, 502510, 615980, 954769, 1005020, 1909538, 3819076, 4773845, 9547690, 19095380]

約数ペア:

[(1, 19095380), (2, 9547690), (4, 4773845), (5, 3819076), (10, 1909538), (19, 1005020), (20, 954769), (31, 615980), (38, 502510), (62, 307990), (76, 251255), (95, 201004), (124, 153995), (155, 123196), (190, 100502), (310, 61598), (380, 50251), (589, 32420), (620, 30799), (1178, 16210), (1621, 11780), (2356, 8105), (2945, 6484), (3242, 5890)]