25940720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24943}}^1$

素因数の和:24969

約数の個数: 40

約数和(自身を含む): 64954176

約数和(自身を除く): 39013456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24943, 49886, 99772, 124715, 199544, 249430, 324259, 399088, 498860, 648518, 997720, 1297036, 1621295, 1995440, 2594072, 3242590, 5188144, 6485180, 12970360, 25940720]

約数ペア:

[(1, 25940720), (2, 12970360), (4, 6485180), (5, 5188144), (8, 3242590), (10, 2594072), (13, 1995440), (16, 1621295), (20, 1297036), (26, 997720), (40, 648518), (52, 498860), (65, 399088), (80, 324259), (104, 249430), (130, 199544), (208, 124715), (260, 99772), (520, 49886), (1040, 24943)]