780858

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 1886976

約数和(自身を除く): 1106118

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 71, 78, 94, 117, 141, 142, 213, 234, 282, 423, 426, 611, 639, 846, 923, 1222, 1278, 1833, 1846, 2769, 3337, 3666, 5499, 5538, 6674, 8307, 10011, 10998, 16614, 20022, 30033, 43381, 60066, 86762, 130143, 260286, 390429, 780858]

約数ペア:

[(1, 780858), (2, 390429), (3, 260286), (6, 130143), (9, 86762), (13, 60066), (18, 43381), (26, 30033), (39, 20022), (47, 16614), (71, 10998), (78, 10011), (94, 8307), (117, 6674), (141, 5538), (142, 5499), (213, 3666), (234, 3337), (282, 2769), (423, 1846), (426, 1833), (611, 1278), (639, 1222), (846, 923)]