1801720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 4187520

約数和(自身を除く): 2385800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1453, 2906, 5812, 7265, 11624, 14530, 29060, 45043, 58120, 90086, 180172, 225215, 360344, 450430, 900860, 1801720]

約数ペア:

[(1, 1801720), (2, 900860), (4, 450430), (5, 360344), (8, 225215), (10, 180172), (20, 90086), (31, 58120), (40, 45043), (62, 29060), (124, 14530), (155, 11624), (248, 7265), (310, 5812), (620, 2906), (1240, 1453)]