39995775

素因数分解:

$3^4\times 5^2\times {\mathrm{19751}}^1$

素因数の和:19773

約数の個数: 30

約数和(自身を含む): 74089752

約数和(自身を除く): 34093977

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 19751, 59253, 98755, 177759, 296265, 493775, 533277, 888795, 1481325, 1599831, 2666385, 4443975, 7999155, 13331925, 39995775]

約数ペア:

[(1, 39995775), (3, 13331925), (5, 7999155), (9, 4443975), (15, 2666385), (25, 1599831), (27, 1481325), (45, 888795), (75, 533277), (81, 493775), (135, 296265), (225, 177759), (405, 98755), (675, 59253), (2025, 19751)]