291258760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{560113}}^1$

素因数の和:560137

約数の個数: 32

約数和(自身を含む): 705743640

約数和(自身を除く): 414484880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 560113, 1120226, 2240452, 2800565, 4480904, 5601130, 7281469, 11202260, 14562938, 22404520, 29125876, 36407345, 58251752, 72814690, 145629380, 291258760]

約数ペア:

[(1, 291258760), (2, 145629380), (4, 72814690), (5, 58251752), (8, 36407345), (10, 29125876), (13, 22404520), (20, 14562938), (26, 11202260), (40, 7281469), (52, 5601130), (65, 4480904), (104, 2800565), (130, 2240452), (260, 1120226), (520, 560113)]