258540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 752640

約数和(自身を除く): 494100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 139, 155, 186, 278, 310, 372, 417, 465, 556, 620, 695, 834, 930, 1390, 1668, 1860, 2085, 2780, 4170, 4309, 8340, 8618, 12927, 17236, 21545, 25854, 43090, 51708, 64635, 86180, 129270, 258540]

約数ペア:

[(1, 258540), (2, 129270), (3, 86180), (4, 64635), (5, 51708), (6, 43090), (10, 25854), (12, 21545), (15, 17236), (20, 12927), (30, 8618), (31, 8340), (60, 4309), (62, 4170), (93, 2780), (124, 2085), (139, 1860), (155, 1668), (186, 1390), (278, 930), (310, 834), (372, 695), (417, 620), (465, 556)]