20118210040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1557137}}^1$

素因数の和:1557184

約数の個数: 64

約数和(自身を含む): 50451271200

約数和(自身を除く): 30333061160

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6460, 12920, 1557137, 3114274, 6228548, 7785685, 12457096, 15571370, 26471329, 29585603, 31142740, 52942658, 59171206, 62285480, 105885316, 118342412, 132356645, 147928015, 211770632, 236684824, 264713290, 295856030, 502955251, 529426580, 591712060, 1005910502, 1058853160, 1183424120, 2011821004, 2514776255, 4023642008, 5029552510, 10059105020, 20118210040]

約数ペア:

[(1, 20118210040), (2, 10059105020), (4, 5029552510), (5, 4023642008), (8, 2514776255), (10, 2011821004), (17, 1183424120), (19, 1058853160), (20, 1005910502), (34, 591712060), (38, 529426580), (40, 502955251), (68, 295856030), (76, 264713290), (85, 236684824), (95, 211770632), (136, 147928015), (152, 132356645), (170, 118342412), (190, 105885316), (323, 62285480), (340, 59171206), (380, 52942658), (646, 31142740), (680, 29585603), (760, 26471329), (1292, 15571370), (1615, 12457096), (2584, 7785685), (3230, 6228548), (6460, 3114274), (12920, 1557137)]