30743020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19963}}^1$

素因数の和:19990

約数の個数: 48

約数和(自身を含む): 80494848

約数和(自身を除く): 49751828

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19963, 39926, 79852, 99815, 139741, 199630, 219593, 279482, 399260, 439186, 558964, 698705, 878372, 1097965, 1397410, 1537151, 2195930, 2794820, 3074302, 4391860, 6148604, 7685755, 15371510, 30743020]

約数ペア:

[(1, 30743020), (2, 15371510), (4, 7685755), (5, 6148604), (7, 4391860), (10, 3074302), (11, 2794820), (14, 2195930), (20, 1537151), (22, 1397410), (28, 1097965), (35, 878372), (44, 698705), (55, 558964), (70, 439186), (77, 399260), (110, 279482), (140, 219593), (154, 199630), (220, 139741), (308, 99815), (385, 79852), (770, 39926), (1540, 19963)]