15219988

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 33643680

約数和(自身を除く): 18423692

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 61, 67, 76, 98, 122, 133, 134, 196, 244, 266, 268, 427, 469, 532, 854, 931, 938, 1159, 1273, 1708, 1862, 1876, 2318, 2546, 2989, 3283, 3724, 4087, 4636, 5092, 5978, 6566, 8113, 8174, 8911, 11956, 13132, 16226, 16348, 17822, 28609, 32452, 35644, 56791, 57218, 62377, 77653, 113582, 114436, 124754, 155306, 200263, 227164, 249508, 310612, 400526, 543571, 801052, 1087142, 2174284, 3804997, 7609994, 15219988]

約数ペア:

[(1, 15219988), (2, 7609994), (4, 3804997), (7, 2174284), (14, 1087142), (19, 801052), (28, 543571), (38, 400526), (49, 310612), (61, 249508), (67, 227164), (76, 200263), (98, 155306), (122, 124754), (133, 114436), (134, 113582), (196, 77653), (244, 62377), (266, 57218), (268, 56791), (427, 35644), (469, 32452), (532, 28609), (854, 17822), (931, 16348), (938, 16226), (1159, 13132), (1273, 11956), (1708, 8911), (1862, 8174), (1876, 8113), (2318, 6566), (2546, 5978), (2989, 5092), (3283, 4636), (3724, 4087)]