257070268

素因数分解:

$2^2\times 7^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 592915680

約数和(自身を除く): 335845412

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 49, 52, 58, 71, 91, 98, 116, 142, 182, 196, 203, 284, 343, 364, 377, 406, 497, 637, 686, 754, 812, 923, 994, 1274, 1372, 1421, 1508, 1846, 1988, 2059, 2401, 2548, 2639, 2842, 3479, 3692, 4118, 4459, 4802, 5278, 5684, 6461, 6958, 8236, 8918, 9604, 9947, 10556, 12922, 13916, 14413, 17836, 18473, 19894, 24353, 25844, 26767, 28826, 31213, 36946, 39788, 45227, 48706, 53534, 57652, 62426, 69629, 73892, 90454, 97412, 100891, 107068, 124852, 129311, 139258, 170471, 180908, 187369, 201782, 258622, 278516, 316589, 340942, 374738, 403564, 517244, 633178, 681884, 706237, 749476, 905177, 1266356, 1311583, 1412474, 1810354, 2216123, 2623166, 2824948, 3620708, 4432246, 4943659, 5246332, 8864492, 9181081, 9887318, 18362162, 19774636, 36724324, 64267567, 128535134, 257070268]

約数ペア:

[(1, 257070268), (2, 128535134), (4, 64267567), (7, 36724324), (13, 19774636), (14, 18362162), (26, 9887318), (28, 9181081), (29, 8864492), (49, 5246332), (52, 4943659), (58, 4432246), (71, 3620708), (91, 2824948), (98, 2623166), (116, 2216123), (142, 1810354), (182, 1412474), (196, 1311583), (203, 1266356), (284, 905177), (343, 749476), (364, 706237), (377, 681884), (406, 633178), (497, 517244), (637, 403564), (686, 374738), (754, 340942), (812, 316589), (923, 278516), (994, 258622), (1274, 201782), (1372, 187369), (1421, 180908), (1508, 170471), (1846, 139258), (1988, 129311), (2059, 124852), (2401, 107068), (2548, 100891), (2639, 97412), (2842, 90454), (3479, 73892), (3692, 69629), (4118, 62426), (4459, 57652), (4802, 53534), (5278, 48706), (5684, 45227), (6461, 39788), (6958, 36946), (8236, 31213), (8918, 28826), (9604, 26767), (9947, 25844), (10556, 24353), (12922, 19894), (13916, 18473), (14413, 17836)]