890398730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:759

約数の個数: 64

約数和(自身を含む): 1761177600

約数和(自身を除く): 870778870

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 181, 362, 395, 479, 790, 905, 958, 1027, 1810, 2054, 2353, 2395, 4706, 4790, 5135, 6227, 10270, 11765, 12454, 14299, 23530, 28598, 31135, 37841, 62270, 71495, 75682, 86699, 142990, 173398, 185887, 189205, 371774, 378410, 433495, 491933, 866990, 929435, 983866, 1127087, 1858870, 2254174, 2459665, 4919330, 5635435, 6849221, 11270870, 13698442, 34246105, 68492210, 89039873, 178079746, 445199365, 890398730]

約数ペア:

[(1, 890398730), (2, 445199365), (5, 178079746), (10, 89039873), (13, 68492210), (26, 34246105), (65, 13698442), (79, 11270870), (130, 6849221), (158, 5635435), (181, 4919330), (362, 2459665), (395, 2254174), (479, 1858870), (790, 1127087), (905, 983866), (958, 929435), (1027, 866990), (1810, 491933), (2054, 433495), (2353, 378410), (2395, 371774), (4706, 189205), (4790, 185887), (5135, 173398), (6227, 142990), (10270, 86699), (11765, 75682), (12454, 71495), (14299, 62270), (23530, 37841), (28598, 31135)]