257221392

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3169}}^1$

素因数の和:3288

約数の個数: 80

約数和(自身を含む): 707544000

約数和(自身を除く): 450322608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 89, 114, 152, 178, 228, 267, 304, 356, 456, 534, 712, 912, 1068, 1424, 1691, 2136, 3169, 3382, 4272, 5073, 6338, 6764, 9507, 10146, 12676, 13528, 19014, 20292, 25352, 27056, 38028, 40584, 50704, 60211, 76056, 81168, 120422, 152112, 180633, 240844, 282041, 361266, 481688, 564082, 722532, 846123, 963376, 1128164, 1445064, 1692246, 2256328, 2890128, 3384492, 4512656, 5358779, 6768984, 10717558, 13537968, 16076337, 21435116, 32152674, 42870232, 64305348, 85740464, 128610696, 257221392]

約数ペア:

[(1, 257221392), (2, 128610696), (3, 85740464), (4, 64305348), (6, 42870232), (8, 32152674), (12, 21435116), (16, 16076337), (19, 13537968), (24, 10717558), (38, 6768984), (48, 5358779), (57, 4512656), (76, 3384492), (89, 2890128), (114, 2256328), (152, 1692246), (178, 1445064), (228, 1128164), (267, 963376), (304, 846123), (356, 722532), (456, 564082), (534, 481688), (712, 361266), (912, 282041), (1068, 240844), (1424, 180633), (1691, 152112), (2136, 120422), (3169, 81168), (3382, 76056), (4272, 60211), (5073, 50704), (6338, 40584), (6764, 38028), (9507, 27056), (10146, 25352), (12676, 20292), (13528, 19014)]