678455440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{652361}}^1$

素因数の和:652387

約数の個数: 40

約数和(自身を含む): 1698750648

約数和(自身を除く): 1020295208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 652361, 1304722, 2609444, 3261805, 5218888, 6523610, 8480693, 10437776, 13047220, 16961386, 26094440, 33922772, 42403465, 52188880, 67845544, 84806930, 135691088, 169613860, 339227720, 678455440]

約数ペア:

[(1, 678455440), (2, 339227720), (4, 169613860), (5, 135691088), (8, 84806930), (10, 67845544), (13, 52188880), (16, 42403465), (20, 33922772), (26, 26094440), (40, 16961386), (52, 13047220), (65, 10437776), (80, 8480693), (104, 6523610), (130, 5218888), (208, 3261805), (260, 2609444), (520, 1304722), (1040, 652361)]