20391864

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 33780936

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 197, 227, 228, 394, 454, 456, 591, 681, 788, 908, 1182, 1362, 1576, 1816, 2364, 2724, 3743, 4313, 4728, 5448, 7486, 8626, 11229, 12939, 14972, 17252, 22458, 25878, 29944, 34504, 44719, 44916, 51756, 89438, 89832, 103512, 134157, 178876, 268314, 357752, 536628, 849661, 1073256, 1699322, 2548983, 3398644, 5097966, 6797288, 10195932, 20391864]

約数ペア:

[(1, 20391864), (2, 10195932), (3, 6797288), (4, 5097966), (6, 3398644), (8, 2548983), (12, 1699322), (19, 1073256), (24, 849661), (38, 536628), (57, 357752), (76, 268314), (114, 178876), (152, 134157), (197, 103512), (227, 89832), (228, 89438), (394, 51756), (454, 44916), (456, 44719), (591, 34504), (681, 29944), (788, 25878), (908, 22458), (1182, 17252), (1362, 14972), (1576, 12939), (1816, 11229), (2364, 8626), (2724, 7486), (3743, 5448), (4313, 4728)]