405109380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{519371}}^1$

素因数の和:519396

約数の個数: 48

約数和(自身を含む): 1221562944

約数和(自身を除く): 816453564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 519371, 1038742, 1558113, 2077484, 2596855, 3116226, 5193710, 6232452, 6751823, 7790565, 10387420, 13503646, 15581130, 20255469, 27007292, 31162260, 33759115, 40510938, 67518230, 81021876, 101277345, 135036460, 202554690, 405109380]

約数ペア:

[(1, 405109380), (2, 202554690), (3, 135036460), (4, 101277345), (5, 81021876), (6, 67518230), (10, 40510938), (12, 33759115), (13, 31162260), (15, 27007292), (20, 20255469), (26, 15581130), (30, 13503646), (39, 10387420), (52, 7790565), (60, 6751823), (65, 6232452), (78, 5193710), (130, 3116226), (156, 2596855), (195, 2077484), (260, 1558113), (390, 1038742), (780, 519371)]