1680989828

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1\times {\mathrm{829}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 3396758400

約数和(自身を除く): 1715768572

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 521, 556, 829, 973, 1042, 1658, 1946, 2084, 3316, 3647, 3892, 5803, 7294, 11606, 14588, 23212, 72419, 115231, 144838, 230462, 289676, 431909, 460924, 506933, 806617, 863818, 1013866, 1613234, 1727636, 2027732, 3023363, 3226468, 6046726, 12093452, 60035351, 120070702, 240141404, 420247457, 840494914, 1680989828]

約数ペア:

[(1, 1680989828), (2, 840494914), (4, 420247457), (7, 240141404), (14, 120070702), (28, 60035351), (139, 12093452), (278, 6046726), (521, 3226468), (556, 3023363), (829, 2027732), (973, 1727636), (1042, 1613234), (1658, 1013866), (1946, 863818), (2084, 806617), (3316, 506933), (3647, 460924), (3892, 431909), (5803, 289676), (7294, 230462), (11606, 144838), (14588, 115231), (23212, 72419)]