12258020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 28159488

約数和(自身を除く): 15901468

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 1163, 2108, 2326, 2635, 4652, 5270, 5815, 10540, 11630, 19771, 23260, 36053, 39542, 72106, 79084, 98855, 144212, 180265, 197710, 360530, 395420, 612901, 721060, 1225802, 2451604, 3064505, 6129010, 12258020]

約数ペア:

[(1, 12258020), (2, 6129010), (4, 3064505), (5, 2451604), (10, 1225802), (17, 721060), (20, 612901), (31, 395420), (34, 360530), (62, 197710), (68, 180265), (85, 144212), (124, 98855), (155, 79084), (170, 72106), (310, 39542), (340, 36053), (527, 23260), (620, 19771), (1054, 11630), (1163, 10540), (2108, 5815), (2326, 5270), (2635, 4652)]