205738780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{3079}}^1$

素因数の和:3358

約数の個数: 48

約数和(自身を含む): 467248320

約数和(自身を除く): 261509540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3079, 3341, 5140, 6158, 6682, 12316, 13364, 15395, 16705, 30790, 33410, 40027, 61580, 66820, 80054, 160108, 200135, 400270, 791303, 800540, 1582606, 3165212, 3956515, 7913030, 10286939, 15826060, 20573878, 41147756, 51434695, 102869390, 205738780]

約数ペア:

[(1, 205738780), (2, 102869390), (4, 51434695), (5, 41147756), (10, 20573878), (13, 15826060), (20, 10286939), (26, 7913030), (52, 3956515), (65, 3165212), (130, 1582606), (257, 800540), (260, 791303), (514, 400270), (1028, 200135), (1285, 160108), (2570, 80054), (3079, 66820), (3341, 61580), (5140, 40027), (6158, 33410), (6682, 30790), (12316, 16705), (13364, 15395)]