31481296

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 120

約数和(自身を含む): 80744832

約数和(自身を除く): 49263536

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 44, 46, 56, 77, 88, 92, 101, 112, 121, 154, 161, 176, 184, 202, 242, 253, 308, 322, 368, 404, 484, 506, 616, 644, 707, 808, 847, 968, 1012, 1111, 1232, 1288, 1414, 1616, 1694, 1771, 1936, 2024, 2222, 2323, 2576, 2783, 2828, 3388, 3542, 4048, 4444, 4646, 5566, 5656, 6776, 7084, 7777, 8888, 9292, 11132, 11312, 12221, 13552, 14168, 15554, 16261, 17776, 18584, 19481, 22264, 24442, 25553, 28336, 31108, 32522, 37168, 38962, 44528, 48884, 51106, 62216, 65044, 77924, 85547, 97768, 102212, 124432, 130088, 155848, 171094, 178871, 195536, 204424, 260176, 281083, 311696, 342188, 357742, 408848, 562166, 684376, 715484, 1124332, 1368752, 1430968, 1967581, 2248664, 2861936, 3935162, 4497328, 7870324, 15740648, 31481296]

約数ペア:

[(1, 31481296), (2, 15740648), (4, 7870324), (7, 4497328), (8, 3935162), (11, 2861936), (14, 2248664), (16, 1967581), (22, 1430968), (23, 1368752), (28, 1124332), (44, 715484), (46, 684376), (56, 562166), (77, 408848), (88, 357742), (92, 342188), (101, 311696), (112, 281083), (121, 260176), (154, 204424), (161, 195536), (176, 178871), (184, 171094), (202, 155848), (242, 130088), (253, 124432), (308, 102212), (322, 97768), (368, 85547), (404, 77924), (484, 65044), (506, 62216), (616, 51106), (644, 48884), (707, 44528), (808, 38962), (847, 37168), (968, 32522), (1012, 31108), (1111, 28336), (1232, 25553), (1288, 24442), (1414, 22264), (1616, 19481), (1694, 18584), (1771, 17776), (1936, 16261), (2024, 15554), (2222, 14168), (2323, 13552), (2576, 12221), (2783, 11312), (2828, 11132), (3388, 9292), (3542, 8888), (4048, 7777), (4444, 7084), (4646, 6776), (5566, 5656)]