20701240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4349}}^1$

素因数の和:4384

約数の個数: 64

約数和(自身を含む): 56376000

約数和(自身を除く): 35674760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4349, 4760, 8698, 17396, 21745, 30443, 34792, 43490, 60886, 73933, 86980, 121772, 147866, 152215, 173960, 243544, 295732, 304430, 369665, 517531, 591464, 608860, 739330, 1035062, 1217720, 1478660, 2070124, 2587655, 2957320, 4140248, 5175310, 10350620, 20701240]

約数ペア:

[(1, 20701240), (2, 10350620), (4, 5175310), (5, 4140248), (7, 2957320), (8, 2587655), (10, 2070124), (14, 1478660), (17, 1217720), (20, 1035062), (28, 739330), (34, 608860), (35, 591464), (40, 517531), (56, 369665), (68, 304430), (70, 295732), (85, 243544), (119, 173960), (136, 152215), (140, 147866), (170, 121772), (238, 86980), (280, 73933), (340, 60886), (476, 43490), (595, 34792), (680, 30443), (952, 21745), (1190, 17396), (2380, 8698), (4349, 4760)]