620655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 1188864

約数和(自身を除く): 568209

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 257, 345, 483, 771, 805, 1285, 1799, 2415, 3855, 5397, 5911, 8995, 17733, 26985, 29555, 41377, 88665, 124131, 206885, 620655]

約数ペア:

[(1, 620655), (3, 206885), (5, 124131), (7, 88665), (15, 41377), (21, 29555), (23, 26985), (35, 17733), (69, 8995), (105, 5911), (115, 5397), (161, 3855), (257, 2415), (345, 1799), (483, 1285), (771, 805)]