271277279

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 378520128

約数和(自身を除く): 107242849

約数列:

[1, 7, 13, 17, 41, 47, 49, 91, 119, 169, 221, 287, 329, 533, 611, 637, 697, 799, 833, 1183, 1547, 1927, 2009, 2303, 2873, 3731, 4277, 4879, 5593, 6929, 7943, 8281, 9061, 10387, 10829, 13489, 20111, 25051, 26117, 29939, 32759, 34153, 39151, 48503, 55601, 63427, 72709, 94423, 117793, 135031, 140777, 175357, 229313, 325663, 339521, 389207, 425867, 443989, 508963, 824551, 945217, 1227499, 1605191, 2279641, 2981069, 5536271, 5771857, 6616519, 15957487, 20867483, 38753897, 271277279]

約数ペア:

[(1, 271277279), (7, 38753897), (13, 20867483), (17, 15957487), (41, 6616519), (47, 5771857), (49, 5536271), (91, 2981069), (119, 2279641), (169, 1605191), (221, 1227499), (287, 945217), (329, 824551), (533, 508963), (611, 443989), (637, 425867), (697, 389207), (799, 339521), (833, 325663), (1183, 229313), (1547, 175357), (1927, 140777), (2009, 135031), (2303, 117793), (2873, 94423), (3731, 72709), (4277, 63427), (4879, 55601), (5593, 48503), (6929, 39151), (7943, 34153), (8281, 32759), (9061, 29939), (10387, 26117), (10829, 25051), (13489, 20111)]