81406325

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3253}}^1$

素因数の和:3294

約数の個数: 48

約数和(自身を含む): 135574656

約数和(自身を除く): 54168331

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 1001, 1925, 2275, 3253, 3575, 5005, 16265, 22771, 25025, 35783, 42289, 81325, 113855, 178915, 211445, 250481, 296023, 465179, 569275, 894575, 1057225, 1252405, 1480115, 2325895, 3256253, 6262025, 7400575, 11629475, 16281265, 81406325]

約数ペア:

[(1, 81406325), (5, 16281265), (7, 11629475), (11, 7400575), (13, 6262025), (25, 3256253), (35, 2325895), (55, 1480115), (65, 1252405), (77, 1057225), (91, 894575), (143, 569275), (175, 465179), (275, 296023), (325, 250481), (385, 211445), (455, 178915), (715, 113855), (1001, 81325), (1925, 42289), (2275, 35783), (3253, 25025), (3575, 22771), (5005, 16265)]