261834690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{1319}}^1$

素因数の和:1851

約数の個数: 64

約数和(自身を含む): 678585600

約数和(自身を除く): 416750910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 509, 1018, 1319, 1527, 2545, 2638, 3054, 3957, 5090, 6595, 6617, 7635, 7914, 13190, 13234, 15270, 17147, 19785, 19851, 33085, 34294, 39570, 39702, 51441, 66170, 85735, 99255, 102882, 171470, 198510, 257205, 514410, 671371, 1342742, 2014113, 3356855, 4028226, 6713710, 8727823, 10070565, 17455646, 20141130, 26183469, 43639115, 52366938, 87278230, 130917345, 261834690]

約数ペア:

[(1, 261834690), (2, 130917345), (3, 87278230), (5, 52366938), (6, 43639115), (10, 26183469), (13, 20141130), (15, 17455646), (26, 10070565), (30, 8727823), (39, 6713710), (65, 4028226), (78, 3356855), (130, 2014113), (195, 1342742), (390, 671371), (509, 514410), (1018, 257205), (1319, 198510), (1527, 171470), (2545, 102882), (2638, 99255), (3054, 85735), (3957, 66170), (5090, 51441), (6595, 39702), (6617, 39570), (7635, 34294), (7914, 33085), (13190, 19851), (13234, 19785), (15270, 17147)]