16811620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{227}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 42364224

約数和(自身を除く): 25552604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 227, 230, 322, 454, 460, 529, 644, 805, 908, 1058, 1135, 1589, 1610, 2116, 2270, 2645, 3178, 3220, 3703, 4540, 5221, 5290, 6356, 7406, 7945, 10442, 10580, 14812, 15890, 18515, 20884, 26105, 31780, 36547, 37030, 52210, 73094, 74060, 104420, 120083, 146188, 182735, 240166, 365470, 480332, 600415, 730940, 840581, 1200830, 1681162, 2401660, 3362324, 4202905, 8405810, 16811620]

約数ペア:

[(1, 16811620), (2, 8405810), (4, 4202905), (5, 3362324), (7, 2401660), (10, 1681162), (14, 1200830), (20, 840581), (23, 730940), (28, 600415), (35, 480332), (46, 365470), (70, 240166), (92, 182735), (115, 146188), (140, 120083), (161, 104420), (227, 74060), (230, 73094), (322, 52210), (454, 37030), (460, 36547), (529, 31780), (644, 26105), (805, 20884), (908, 18515), (1058, 15890), (1135, 14812), (1589, 10580), (1610, 10442), (2116, 7945), (2270, 7406), (2645, 6356), (3178, 5290), (3220, 5221), (3703, 4540)]