257777436

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{2203}}^1$

素因数の和:2423

約数の個数: 72

約数和(自身を含む): 703516800

約数和(自身を除く): 445739364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 199, 294, 398, 588, 597, 796, 1194, 1393, 2203, 2388, 2786, 4179, 4406, 5572, 6609, 8358, 8812, 9751, 13218, 15421, 16716, 19502, 26436, 29253, 30842, 39004, 46263, 58506, 61684, 92526, 107947, 117012, 185052, 215894, 323841, 431788, 438397, 647682, 876794, 1295364, 1315191, 1753588, 2630382, 3068779, 5260764, 6137558, 9206337, 12275116, 18412674, 21481453, 36825348, 42962906, 64444359, 85925812, 128888718, 257777436]

約数ペア:

[(1, 257777436), (2, 128888718), (3, 85925812), (4, 64444359), (6, 42962906), (7, 36825348), (12, 21481453), (14, 18412674), (21, 12275116), (28, 9206337), (42, 6137558), (49, 5260764), (84, 3068779), (98, 2630382), (147, 1753588), (196, 1315191), (199, 1295364), (294, 876794), (398, 647682), (588, 438397), (597, 431788), (796, 323841), (1194, 215894), (1393, 185052), (2203, 117012), (2388, 107947), (2786, 92526), (4179, 61684), (4406, 58506), (5572, 46263), (6609, 39004), (8358, 30842), (8812, 29253), (9751, 26436), (13218, 19502), (15421, 16716)]