39999825

素因数分解:

$3^4\times 5^2\times {\mathrm{19753}}^1$

素因数の和:19775

約数の個数: 30

約数和(自身を含む): 74097254

約数和(自身を除く): 34097429

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 19753, 59259, 98765, 177777, 296295, 493825, 533331, 888885, 1481475, 1599993, 2666655, 4444425, 7999965, 13333275, 39999825]

約数ペア:

[(1, 39999825), (3, 13333275), (5, 7999965), (9, 4444425), (15, 2666655), (25, 1599993), (27, 1481475), (45, 888885), (75, 533331), (81, 493825), (135, 296295), (225, 177777), (405, 98765), (675, 59259), (2025, 19753)]