20715708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 54051312

約数和(自身を除く): 33335604

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 97, 111, 148, 156, 194, 222, 291, 388, 444, 481, 582, 962, 1164, 1261, 1369, 1443, 1924, 2522, 2738, 2886, 3589, 3783, 4107, 5044, 5476, 5772, 7178, 7566, 8214, 10767, 14356, 15132, 16428, 17797, 21534, 35594, 43068, 46657, 53391, 71188, 93314, 106782, 132793, 139971, 186628, 213564, 265586, 279942, 398379, 531172, 559884, 796758, 1593516, 1726309, 3452618, 5178927, 6905236, 10357854, 20715708]

約数ペア:

[(1, 20715708), (2, 10357854), (3, 6905236), (4, 5178927), (6, 3452618), (12, 1726309), (13, 1593516), (26, 796758), (37, 559884), (39, 531172), (52, 398379), (74, 279942), (78, 265586), (97, 213564), (111, 186628), (148, 139971), (156, 132793), (194, 106782), (222, 93314), (291, 71188), (388, 53391), (444, 46657), (481, 43068), (582, 35594), (962, 21534), (1164, 17797), (1261, 16428), (1369, 15132), (1443, 14356), (1924, 10767), (2522, 8214), (2738, 7566), (2886, 7178), (3589, 5772), (3783, 5476), (4107, 5044)]