20784224735

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{6287}}^1$

素因数の和:6440

約数の個数: 64

約数和(自身を含む): 29337292800

約数和(自身を除く): 8553068065

約数列:

[1, 5, 17, 19, 23, 85, 89, 95, 115, 323, 391, 437, 445, 1513, 1615, 1691, 1955, 2047, 2185, 6287, 7429, 7565, 8455, 10235, 28747, 31435, 34799, 37145, 38893, 106879, 119453, 143735, 144601, 173995, 194465, 534395, 559543, 597265, 661181, 723005, 2030701, 2458217, 2747419, 2797715, 3305905, 9512231, 10153505, 10631317, 12291085, 12869489, 13737095, 46706123, 47561155, 53156585, 64347445, 180732389, 218781313, 233530615, 244520291, 903661945, 1093906565, 1222601455, 4156844947, 20784224735]

約数ペア:

[(1, 20784224735), (5, 4156844947), (17, 1222601455), (19, 1093906565), (23, 903661945), (85, 244520291), (89, 233530615), (95, 218781313), (115, 180732389), (323, 64347445), (391, 53156585), (437, 47561155), (445, 46706123), (1513, 13737095), (1615, 12869489), (1691, 12291085), (1955, 10631317), (2047, 10153505), (2185, 9512231), (6287, 3305905), (7429, 2797715), (7565, 2747419), (8455, 2458217), (10235, 2030701), (28747, 723005), (31435, 661181), (34799, 597265), (37145, 559543), (38893, 534395), (106879, 194465), (119453, 173995), (143735, 144601)]