19296980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 22933180

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 293, 356, 370, 445, 586, 740, 890, 1172, 1465, 1780, 2930, 3293, 5860, 6586, 10841, 13172, 16465, 21682, 26077, 32930, 43364, 52154, 54205, 65860, 104308, 108410, 130385, 216820, 260770, 521540, 964849, 1929698, 3859396, 4824245, 9648490, 19296980]

約数ペア:

[(1, 19296980), (2, 9648490), (4, 4824245), (5, 3859396), (10, 1929698), (20, 964849), (37, 521540), (74, 260770), (89, 216820), (148, 130385), (178, 108410), (185, 104308), (293, 65860), (356, 54205), (370, 52154), (445, 43364), (586, 32930), (740, 26077), (890, 21682), (1172, 16465), (1465, 13172), (1780, 10841), (2930, 6586), (3293, 5860)]