1977615

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 3746160

約数和(自身を除く): 1768545

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 257, 285, 405, 513, 771, 855, 1285, 1539, 2313, 2565, 3855, 4883, 6939, 7695, 11565, 14649, 20817, 24415, 34695, 43947, 73245, 104085, 131841, 219735, 395523, 659205, 1977615]

約数ペア:

[(1, 1977615), (3, 659205), (5, 395523), (9, 219735), (15, 131841), (19, 104085), (27, 73245), (45, 43947), (57, 34695), (81, 24415), (95, 20817), (135, 14649), (171, 11565), (257, 7695), (285, 6939), (405, 4883), (513, 3855), (771, 2565), (855, 2313), (1285, 1539)]