257382398

素因数分解:

$2^1\times 7^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 96

約数和(自身を含む): 527063040

約数和(自身を除く): 269680642

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 49, 62, 91, 98, 133, 182, 217, 247, 266, 343, 403, 434, 494, 589, 637, 686, 806, 931, 1178, 1274, 1519, 1729, 1862, 2401, 2821, 3038, 3458, 4123, 4459, 4802, 5642, 6517, 7657, 8246, 8918, 10633, 12103, 13034, 15314, 16807, 19747, 21266, 24206, 28861, 31213, 33614, 39494, 45619, 53599, 57722, 62426, 74431, 84721, 91238, 107198, 138229, 148862, 169442, 202027, 218491, 276458, 319333, 375193, 404054, 436982, 521017, 593047, 638666, 750386, 967603, 1042034, 1186094, 1414189, 1935206, 2626351, 2828378, 4151329, 5252702, 6773221, 8302658, 9899323, 13546442, 18384457, 19798646, 36768914, 128691199, 257382398]

約数ペア:

[(1, 257382398), (2, 128691199), (7, 36768914), (13, 19798646), (14, 18384457), (19, 13546442), (26, 9899323), (31, 8302658), (38, 6773221), (49, 5252702), (62, 4151329), (91, 2828378), (98, 2626351), (133, 1935206), (182, 1414189), (217, 1186094), (247, 1042034), (266, 967603), (343, 750386), (403, 638666), (434, 593047), (494, 521017), (589, 436982), (637, 404054), (686, 375193), (806, 319333), (931, 276458), (1178, 218491), (1274, 202027), (1519, 169442), (1729, 148862), (1862, 138229), (2401, 107198), (2821, 91238), (3038, 84721), (3458, 74431), (4123, 62426), (4459, 57722), (4802, 53599), (5642, 45619), (6517, 39494), (7657, 33614), (8246, 31213), (8918, 28861), (10633, 24206), (12103, 21266), (13034, 19747), (15314, 16807)]