257376028

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1217}}^1$

素因数の和:1331

約数の個数: 72

約数和(自身を含む): 571514832

約数和(自身を除く): 314138804

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 83, 91, 98, 166, 182, 196, 332, 364, 581, 637, 1079, 1162, 1217, 1274, 2158, 2324, 2434, 2548, 4067, 4316, 4868, 7553, 8134, 8519, 15106, 15821, 16268, 17038, 30212, 31642, 34076, 52871, 59633, 63284, 101011, 105742, 110747, 119266, 202022, 211484, 221494, 238532, 404044, 442988, 707077, 775229, 1313143, 1414154, 1550458, 2626286, 2828308, 3100916, 4949539, 5252572, 9192001, 9899078, 18384002, 19798156, 36768004, 64344007, 128688014, 257376028]

約数ペア:

[(1, 257376028), (2, 128688014), (4, 64344007), (7, 36768004), (13, 19798156), (14, 18384002), (26, 9899078), (28, 9192001), (49, 5252572), (52, 4949539), (83, 3100916), (91, 2828308), (98, 2626286), (166, 1550458), (182, 1414154), (196, 1313143), (332, 775229), (364, 707077), (581, 442988), (637, 404044), (1079, 238532), (1162, 221494), (1217, 211484), (1274, 202022), (2158, 119266), (2324, 110747), (2434, 105742), (2548, 101011), (4067, 63284), (4316, 59633), (4868, 52871), (7553, 34076), (8134, 31642), (8519, 30212), (15106, 17038), (15821, 16268)]