1323980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{193}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 3259200

約数和(自身を除く): 1935220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 343, 386, 490, 686, 772, 965, 980, 1351, 1372, 1715, 1930, 2702, 3430, 3860, 5404, 6755, 6860, 9457, 13510, 18914, 27020, 37828, 47285, 66199, 94570, 132398, 189140, 264796, 330995, 661990, 1323980]

約数ペア:

[(1, 1323980), (2, 661990), (4, 330995), (5, 264796), (7, 189140), (10, 132398), (14, 94570), (20, 66199), (28, 47285), (35, 37828), (49, 27020), (70, 18914), (98, 13510), (140, 9457), (193, 6860), (196, 6755), (245, 5404), (343, 3860), (386, 3430), (490, 2702), (686, 1930), (772, 1715), (965, 1372), (980, 1351)]