20556630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3217}}^1$

素因数の和:3301

約数の個数: 48

約数和(自身を含む): 54216864

約数和(自身を除く): 33660234

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 3217, 6390, 6434, 9651, 16085, 19302, 28953, 32170, 48255, 57906, 96510, 144765, 228407, 289530, 456814, 685221, 1142035, 1370442, 2055663, 2284070, 3426105, 4111326, 6852210, 10278315, 20556630]

約数ペア:

[(1, 20556630), (2, 10278315), (3, 6852210), (5, 4111326), (6, 3426105), (9, 2284070), (10, 2055663), (15, 1370442), (18, 1142035), (30, 685221), (45, 456814), (71, 289530), (90, 228407), (142, 144765), (213, 96510), (355, 57906), (426, 48255), (639, 32170), (710, 28953), (1065, 19302), (1278, 16085), (2130, 9651), (3195, 6434), (3217, 6390)]