256594149

素因数分解:

$3^8\times 7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 454732928

約数和(自身を除く): 198138779

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 151, 189, 243, 259, 333, 453, 567, 729, 777, 999, 1057, 1359, 1701, 2187, 2331, 2997, 3171, 4077, 5103, 5587, 6561, 6993, 8991, 9513, 12231, 15309, 16761, 20979, 26973, 28539, 36693, 39109, 45927, 50283, 62937, 80919, 85617, 110079, 117327, 150849, 188811, 242757, 256851, 330237, 351981, 452547, 566433, 770553, 990711, 1055943, 1357641, 1699299, 2311659, 3167829, 4072923, 6934977, 9503487, 12218769, 28510461, 36656307, 85531383, 256594149]

約数ペア:

[(1, 256594149), (3, 85531383), (7, 36656307), (9, 28510461), (21, 12218769), (27, 9503487), (37, 6934977), (63, 4072923), (81, 3167829), (111, 2311659), (151, 1699299), (189, 1357641), (243, 1055943), (259, 990711), (333, 770553), (453, 566433), (567, 452547), (729, 351981), (777, 330237), (999, 256851), (1057, 242757), (1359, 188811), (1701, 150849), (2187, 117327), (2331, 110079), (2997, 85617), (3171, 80919), (4077, 62937), (5103, 50283), (5587, 45927), (6561, 39109), (6993, 36693), (8991, 28539), (9513, 26973), (12231, 20979), (15309, 16761)]