245879140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{7219}}^1$

素因数の和:7372

約数の個数: 48

約数和(自身を含む): 560387520

約数和(自身を除く): 314508380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 3406, 6812, 7219, 8515, 14438, 17030, 28876, 34060, 36095, 72190, 93847, 144380, 187694, 375388, 469235, 938470, 945689, 1876940, 1891378, 3782756, 4728445, 9456890, 12293957, 18913780, 24587914, 49175828, 61469785, 122939570, 245879140]

約数ペア:

[(1, 245879140), (2, 122939570), (4, 61469785), (5, 49175828), (10, 24587914), (13, 18913780), (20, 12293957), (26, 9456890), (52, 4728445), (65, 3782756), (130, 1891378), (131, 1876940), (260, 945689), (262, 938470), (524, 469235), (655, 375388), (1310, 187694), (1703, 144380), (2620, 93847), (3406, 72190), (6812, 36095), (7219, 34060), (8515, 28876), (14438, 17030)]