261205204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 563915520

約数和(自身を除く): 302710316

約数列:

[1, 2, 4, 13, 17, 23, 26, 29, 34, 46, 52, 58, 68, 92, 116, 221, 299, 377, 391, 442, 443, 493, 598, 667, 754, 782, 884, 886, 986, 1196, 1334, 1508, 1564, 1772, 1972, 2668, 5083, 5759, 6409, 7531, 8671, 10166, 10189, 11339, 11518, 12818, 12847, 15062, 17342, 20332, 20378, 22678, 23036, 25636, 25694, 30124, 34684, 40756, 45356, 51388, 97903, 132457, 147407, 167011, 173213, 195806, 218399, 264914, 294814, 295481, 334022, 346426, 391612, 436798, 529828, 589628, 590962, 668044, 692852, 873596, 1181924, 2251769, 2839187, 3841253, 4503538, 5023177, 5678374, 7682506, 9007076, 10046354, 11356748, 15365012, 20092708, 65301301, 130602602, 261205204]

約数ペア:

[(1, 261205204), (2, 130602602), (4, 65301301), (13, 20092708), (17, 15365012), (23, 11356748), (26, 10046354), (29, 9007076), (34, 7682506), (46, 5678374), (52, 5023177), (58, 4503538), (68, 3841253), (92, 2839187), (116, 2251769), (221, 1181924), (299, 873596), (377, 692852), (391, 668044), (442, 590962), (443, 589628), (493, 529828), (598, 436798), (667, 391612), (754, 346426), (782, 334022), (884, 295481), (886, 294814), (986, 264914), (1196, 218399), (1334, 195806), (1508, 173213), (1564, 167011), (1772, 147407), (1972, 132457), (2668, 97903), (5083, 51388), (5759, 45356), (6409, 40756), (7531, 34684), (8671, 30124), (10166, 25694), (10189, 25636), (11339, 23036), (11518, 22678), (12818, 20378), (12847, 20332), (15062, 17342)]