20087865

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{733}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 42278400

約数和(自身を除く): 22190535

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 733, 783, 945, 1015, 1305, 1827, 2199, 3045, 3665, 3915, 5131, 5481, 6597, 9135, 10995, 15393, 19791, 21257, 25655, 27405, 32985, 46179, 63771, 76965, 98955, 106285, 138537, 148799, 191313, 230895, 318855, 446397, 573939, 692685, 743995, 956565, 1339191, 2231985, 2869695, 4017573, 6695955, 20087865]

約数ペア:

[(1, 20087865), (3, 6695955), (5, 4017573), (7, 2869695), (9, 2231985), (15, 1339191), (21, 956565), (27, 743995), (29, 692685), (35, 573939), (45, 446397), (63, 318855), (87, 230895), (105, 191313), (135, 148799), (145, 138537), (189, 106285), (203, 98955), (261, 76965), (315, 63771), (435, 46179), (609, 32985), (733, 27405), (783, 25655), (945, 21257), (1015, 19791), (1305, 15393), (1827, 10995), (2199, 9135), (3045, 6597), (3665, 5481), (3915, 5131)]