321878452

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 673741824

約数和(自身を除く): 351863372

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 127, 134, 193, 196, 254, 268, 386, 469, 508, 772, 889, 938, 1351, 1778, 1876, 2702, 3283, 3556, 5404, 6223, 6566, 8509, 9457, 12446, 12931, 13132, 17018, 18914, 24511, 24892, 25862, 34036, 37828, 49022, 51724, 59563, 90517, 98044, 119126, 171577, 181034, 238252, 343154, 362068, 416941, 633619, 686308, 833882, 1201039, 1267238, 1642237, 1667764, 2402078, 2534476, 3284474, 4804156, 6568948, 11495659, 22991318, 45982636, 80469613, 160939226, 321878452]

約数ペア:

[(1, 321878452), (2, 160939226), (4, 80469613), (7, 45982636), (14, 22991318), (28, 11495659), (49, 6568948), (67, 4804156), (98, 3284474), (127, 2534476), (134, 2402078), (193, 1667764), (196, 1642237), (254, 1267238), (268, 1201039), (386, 833882), (469, 686308), (508, 633619), (772, 416941), (889, 362068), (938, 343154), (1351, 238252), (1778, 181034), (1876, 171577), (2702, 119126), (3283, 98044), (3556, 90517), (5404, 59563), (6223, 51724), (6566, 49022), (8509, 37828), (9457, 34036), (12446, 25862), (12931, 24892), (13132, 24511), (17018, 18914)]