19297915

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 29762208

約数和(自身を除く): 10464293

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 83, 91, 245, 365, 415, 455, 511, 581, 637, 949, 1079, 2555, 2905, 3185, 3577, 4067, 4745, 5395, 6059, 6643, 7553, 17885, 20335, 30295, 33215, 37765, 42413, 46501, 52871, 78767, 212065, 232505, 264355, 296891, 393835, 551369, 1484455, 2756845, 3859583, 19297915]

約数ペア:

[(1, 19297915), (5, 3859583), (7, 2756845), (13, 1484455), (35, 551369), (49, 393835), (65, 296891), (73, 264355), (83, 232505), (91, 212065), (245, 78767), (365, 52871), (415, 46501), (455, 42413), (511, 37765), (581, 33215), (637, 30295), (949, 20335), (1079, 17885), (2555, 7553), (2905, 6643), (3185, 6059), (3577, 5395), (4067, 4745)]