840375

素因数分解:

$3^4\times 5^3\times {\mathrm{83}}^1$

素因数の和:110

約数の個数: 40

約数和(自身を含む): 1585584

約数和(自身を除く): 745209

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 83, 125, 135, 225, 249, 375, 405, 415, 675, 747, 1125, 1245, 2025, 2075, 2241, 3375, 3735, 6225, 6723, 10125, 10375, 11205, 18675, 31125, 33615, 56025, 93375, 168075, 280125, 840375]

約数ペア:

[(1, 840375), (3, 280125), (5, 168075), (9, 93375), (15, 56025), (25, 33615), (27, 31125), (45, 18675), (75, 11205), (81, 10375), (83, 10125), (125, 6723), (135, 6225), (225, 3735), (249, 3375), (375, 2241), (405, 2075), (415, 2025), (675, 1245), (747, 1125)]