209905605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3943}}^1$

素因数の和:3987

約数の個数: 72

約数和(自身を含む): 450373248

約数和(自身を除く): 240467643

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 169, 195, 273, 315, 455, 507, 585, 819, 845, 1183, 1365, 1521, 2535, 3549, 3943, 4095, 5915, 7605, 10647, 11829, 17745, 19715, 27601, 35487, 51259, 53235, 59145, 82803, 138005, 153777, 177435, 248409, 256295, 358813, 414015, 461331, 666367, 768885, 1076439, 1242045, 1794065, 1999101, 2306655, 3229317, 3331835, 4664569, 5382195, 5997303, 9995505, 13993707, 16146585, 23322845, 29986515, 41981121, 69968535, 209905605]

約数ペア:

[(1, 209905605), (3, 69968535), (5, 41981121), (7, 29986515), (9, 23322845), (13, 16146585), (15, 13993707), (21, 9995505), (35, 5997303), (39, 5382195), (45, 4664569), (63, 3331835), (65, 3229317), (91, 2306655), (105, 1999101), (117, 1794065), (169, 1242045), (195, 1076439), (273, 768885), (315, 666367), (455, 461331), (507, 414015), (585, 358813), (819, 256295), (845, 248409), (1183, 177435), (1365, 153777), (1521, 138005), (2535, 82803), (3549, 59145), (3943, 53235), (4095, 51259), (5915, 35487), (7605, 27601), (10647, 19715), (11829, 17745)]