15920212

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 36227072

約数和(自身を除く): 20306860

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 121, 127, 148, 154, 242, 254, 259, 308, 407, 484, 508, 518, 814, 847, 889, 1036, 1397, 1628, 1694, 1778, 2794, 2849, 3388, 3556, 4477, 4699, 5588, 5698, 8954, 9398, 9779, 11396, 15367, 17908, 18796, 19558, 30734, 31339, 32893, 39116, 51689, 61468, 62678, 65786, 103378, 107569, 125356, 131572, 206756, 215138, 361823, 430276, 568579, 723646, 1137158, 1447292, 2274316, 3980053, 7960106, 15920212]

約数ペア:

[(1, 15920212), (2, 7960106), (4, 3980053), (7, 2274316), (11, 1447292), (14, 1137158), (22, 723646), (28, 568579), (37, 430276), (44, 361823), (74, 215138), (77, 206756), (121, 131572), (127, 125356), (148, 107569), (154, 103378), (242, 65786), (254, 62678), (259, 61468), (308, 51689), (407, 39116), (484, 32893), (508, 31339), (518, 30734), (814, 19558), (847, 18796), (889, 17908), (1036, 15367), (1397, 11396), (1628, 9779), (1694, 9398), (1778, 8954), (2794, 5698), (2849, 5588), (3388, 4699), (3556, 4477)]