51881440

素因数分解:

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

素因数の和:24971

約数の個数: 48

約数和(自身を含む): 132003648

約数和(自身を除く): 80122208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 24943, 49886, 99772, 124715, 199544, 249430, 324259, 399088, 498860, 648518, 798176, 997720, 1297036, 1621295, 1995440, 2594072, 3242590, 3990880, 5188144, 6485180, 10376288, 12970360, 25940720, 51881440]

約数ペア:

[(1, 51881440), (2, 25940720), (4, 12970360), (5, 10376288), (8, 6485180), (10, 5188144), (13, 3990880), (16, 3242590), (20, 2594072), (26, 1995440), (32, 1621295), (40, 1297036), (52, 997720), (65, 798176), (80, 648518), (104, 498860), (130, 399088), (160, 324259), (208, 249430), (260, 199544), (416, 124715), (520, 99772), (1040, 49886), (2080, 24943)]