425042020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{6361}}^1$

素因数の和:6640

約数の個数: 48

約数和(自身を含む): 965140848

約数和(自身を除く): 540098828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3341, 5140, 6361, 6682, 12722, 13364, 16705, 25444, 31805, 33410, 63610, 66820, 82693, 127220, 165386, 330772, 413465, 826930, 1634777, 1653860, 3269554, 6539108, 8173885, 16347770, 21252101, 32695540, 42504202, 85008404, 106260505, 212521010, 425042020]

約数ペア:

[(1, 425042020), (2, 212521010), (4, 106260505), (5, 85008404), (10, 42504202), (13, 32695540), (20, 21252101), (26, 16347770), (52, 8173885), (65, 6539108), (130, 3269554), (257, 1653860), (260, 1634777), (514, 826930), (1028, 413465), (1285, 330772), (2570, 165386), (3341, 127220), (5140, 82693), (6361, 66820), (6682, 63610), (12722, 33410), (13364, 31805), (16705, 25444)]