1664531120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{72497}}^1$

素因数の和:72558

約数の個数: 80

約数和(自身を含む): 4530835008

約数和(自身を除く): 2866303888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 4592, 5740, 11480, 22960, 72497, 144994, 289988, 362485, 507479, 579976, 724970, 1014958, 1159952, 1449940, 2029916, 2537395, 2899880, 2972377, 4059832, 5074790, 5799760, 5944754, 8119664, 10149580, 11889508, 14861885, 20299160, 20806639, 23779016, 29723770, 40598320, 41613278, 47558032, 59447540, 83226556, 104033195, 118895080, 166453112, 208066390, 237790160, 332906224, 416132780, 832265560, 1664531120]

約数ペア:

[(1, 1664531120), (2, 832265560), (4, 416132780), (5, 332906224), (7, 237790160), (8, 208066390), (10, 166453112), (14, 118895080), (16, 104033195), (20, 83226556), (28, 59447540), (35, 47558032), (40, 41613278), (41, 40598320), (56, 29723770), (70, 23779016), (80, 20806639), (82, 20299160), (112, 14861885), (140, 11889508), (164, 10149580), (205, 8119664), (280, 5944754), (287, 5799760), (328, 5074790), (410, 4059832), (560, 2972377), (574, 2899880), (656, 2537395), (820, 2029916), (1148, 1449940), (1435, 1159952), (1640, 1014958), (2296, 724970), (2870, 579976), (3280, 507479), (4592, 362485), (5740, 289988), (11480, 144994), (22960, 72497)]