20735512

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 28408808

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 947, 952, 1288, 1564, 1894, 2737, 3128, 3788, 5474, 6629, 7576, 10948, 13258, 16099, 21781, 21896, 26516, 32198, 43562, 53032, 64396, 87124, 112693, 128792, 152467, 174248, 225386, 304934, 370277, 450772, 609868, 740554, 901544, 1219736, 1481108, 2591939, 2962216, 5183878, 10367756, 20735512]

約数ペア:

[(1, 20735512), (2, 10367756), (4, 5183878), (7, 2962216), (8, 2591939), (14, 1481108), (17, 1219736), (23, 901544), (28, 740554), (34, 609868), (46, 450772), (56, 370277), (68, 304934), (92, 225386), (119, 174248), (136, 152467), (161, 128792), (184, 112693), (238, 87124), (322, 64396), (391, 53032), (476, 43562), (644, 32198), (782, 26516), (947, 21896), (952, 21781), (1288, 16099), (1564, 13258), (1894, 10948), (2737, 7576), (3128, 6629), (3788, 5474)]