420647565

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{2741}}^1$

素因数の和:3549

約数の個数: 32

約数和(自身を含む): 725993856

約数和(自身を除く): 305346291

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 787, 2361, 2741, 3935, 8223, 10231, 11805, 13705, 30693, 35633, 41115, 51155, 106899, 153465, 178165, 534495, 2157167, 6471501, 10785835, 28043171, 32357505, 84129513, 140215855, 420647565]

約数ペア:

[(1, 420647565), (3, 140215855), (5, 84129513), (13, 32357505), (15, 28043171), (39, 10785835), (65, 6471501), (195, 2157167), (787, 534495), (2361, 178165), (2741, 153465), (3935, 106899), (8223, 51155), (10231, 41115), (11805, 35633), (13705, 30693)]