78879555

素因数分解:

$3^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1049}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 140616000

約数和(自身を除く): 61736445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 557, 1049, 1671, 2785, 3147, 5013, 5245, 8355, 9441, 15039, 15735, 25065, 28323, 47205, 75195, 141615, 584293, 1752879, 2921465, 5258637, 8764395, 15775911, 26293185, 78879555]

約数ペア:

[(1, 78879555), (3, 26293185), (5, 15775911), (9, 8764395), (15, 5258637), (27, 2921465), (45, 1752879), (135, 584293), (557, 141615), (1049, 75195), (1671, 47205), (2785, 28323), (3147, 25065), (5013, 15735), (5245, 15039), (8355, 9441)]