639154215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{3079}}^1$

素因数の和:3756

約数の個数: 48

約数和(自身を含む): 1268467200

約数和(自身を除く): 629312985

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 659, 1977, 3079, 3295, 4613, 5931, 9237, 9885, 13839, 15395, 21553, 23065, 27711, 29655, 41517, 46185, 64659, 69195, 107765, 138555, 193977, 207585, 323295, 969885, 2029061, 6087183, 10145305, 14203427, 18261549, 30435915, 42610281, 71017135, 91307745, 127830843, 213051405, 639154215]

約数ペア:

[(1, 639154215), (3, 213051405), (5, 127830843), (7, 91307745), (9, 71017135), (15, 42610281), (21, 30435915), (35, 18261549), (45, 14203427), (63, 10145305), (105, 6087183), (315, 2029061), (659, 969885), (1977, 323295), (3079, 207585), (3295, 193977), (4613, 138555), (5931, 107765), (9237, 69195), (9885, 64659), (13839, 46185), (15395, 41517), (21553, 29655), (23065, 27711)]