8938540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 20885760

約数和(自身を除く): 11947220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1109, 1612, 2015, 2218, 4030, 4436, 5545, 8060, 11090, 14417, 22180, 28834, 34379, 57668, 68758, 72085, 137516, 144170, 171895, 288340, 343790, 446927, 687580, 893854, 1787708, 2234635, 4469270, 8938540]

約数ペア:

[(1, 8938540), (2, 4469270), (4, 2234635), (5, 1787708), (10, 893854), (13, 687580), (20, 446927), (26, 343790), (31, 288340), (52, 171895), (62, 144170), (65, 137516), (124, 72085), (130, 68758), (155, 57668), (260, 34379), (310, 28834), (403, 22180), (620, 14417), (806, 11090), (1109, 8060), (1612, 5545), (2015, 4436), (2218, 4030)]