20405924

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 47369280

約数和(自身を除く): 26963356

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 121, 133, 154, 209, 242, 266, 308, 317, 418, 484, 532, 634, 836, 847, 1268, 1463, 1694, 2219, 2299, 2926, 3388, 3487, 4438, 4598, 5852, 6023, 6974, 8876, 9196, 12046, 13948, 16093, 24092, 24409, 32186, 38357, 42161, 48818, 64372, 66253, 76714, 84322, 97636, 132506, 153428, 168644, 265012, 268499, 463771, 536998, 728783, 927542, 1073996, 1457566, 1855084, 2915132, 5101481, 10202962, 20405924]

約数ペア:

[(1, 20405924), (2, 10202962), (4, 5101481), (7, 2915132), (11, 1855084), (14, 1457566), (19, 1073996), (22, 927542), (28, 728783), (38, 536998), (44, 463771), (76, 268499), (77, 265012), (121, 168644), (133, 153428), (154, 132506), (209, 97636), (242, 84322), (266, 76714), (308, 66253), (317, 64372), (418, 48818), (484, 42161), (532, 38357), (634, 32186), (836, 24409), (847, 24092), (1268, 16093), (1463, 13948), (1694, 12046), (2219, 9196), (2299, 8876), (2926, 6974), (3388, 6023), (3487, 5852), (4438, 4598)]