20359768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^2$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 46346580

約数和(自身を除く): 25986812

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 169, 286, 296, 338, 407, 481, 572, 676, 814, 962, 1144, 1352, 1369, 1628, 1859, 1924, 2738, 3256, 3718, 3848, 5291, 5476, 6253, 7436, 10582, 10952, 12506, 14872, 15059, 17797, 21164, 25012, 30118, 35594, 42328, 50024, 60236, 68783, 71188, 120472, 137566, 142376, 195767, 231361, 275132, 391534, 462722, 550264, 783068, 925444, 1566136, 1850888, 2544971, 5089942, 10179884, 20359768]

約数ペア:

[(1, 20359768), (2, 10179884), (4, 5089942), (8, 2544971), (11, 1850888), (13, 1566136), (22, 925444), (26, 783068), (37, 550264), (44, 462722), (52, 391534), (74, 275132), (88, 231361), (104, 195767), (143, 142376), (148, 137566), (169, 120472), (286, 71188), (296, 68783), (338, 60236), (407, 50024), (481, 42328), (572, 35594), (676, 30118), (814, 25012), (962, 21164), (1144, 17797), (1352, 15059), (1369, 14872), (1628, 12506), (1859, 10952), (1924, 10582), (2738, 7436), (3256, 6253), (3718, 5476), (3848, 5291)]