2723420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{397}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 6686400

約数和(自身を除く): 3962980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 397, 490, 686, 794, 980, 1372, 1588, 1715, 1985, 2779, 3430, 3970, 5558, 6860, 7940, 11116, 13895, 19453, 27790, 38906, 55580, 77812, 97265, 136171, 194530, 272342, 389060, 544684, 680855, 1361710, 2723420]

約数ペア:

[(1, 2723420), (2, 1361710), (4, 680855), (5, 544684), (7, 389060), (10, 272342), (14, 194530), (20, 136171), (28, 97265), (35, 77812), (49, 55580), (70, 38906), (98, 27790), (140, 19453), (196, 13895), (245, 11116), (343, 7940), (397, 6860), (490, 5558), (686, 3970), (794, 3430), (980, 2779), (1372, 1985), (1588, 1715)]