81189612

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1619}}^1$

素因数の和:1835

約数の個数: 72

約数和(自身を含む): 235872000

約数和(自身を除く): 154682388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 199, 252, 398, 597, 796, 1194, 1393, 1619, 1791, 2388, 2786, 3238, 3582, 4179, 4857, 5572, 6476, 7164, 8358, 9714, 11333, 12537, 14571, 16716, 19428, 22666, 25074, 29142, 33999, 45332, 50148, 58284, 67998, 101997, 135996, 203994, 322181, 407988, 644362, 966543, 1288724, 1933086, 2255267, 2899629, 3866172, 4510534, 5799258, 6765801, 9021068, 11598516, 13531602, 20297403, 27063204, 40594806, 81189612]

約数ペア:

[(1, 81189612), (2, 40594806), (3, 27063204), (4, 20297403), (6, 13531602), (7, 11598516), (9, 9021068), (12, 6765801), (14, 5799258), (18, 4510534), (21, 3866172), (28, 2899629), (36, 2255267), (42, 1933086), (63, 1288724), (84, 966543), (126, 644362), (199, 407988), (252, 322181), (398, 203994), (597, 135996), (796, 101997), (1194, 67998), (1393, 58284), (1619, 50148), (1791, 45332), (2388, 33999), (2786, 29142), (3238, 25074), (3582, 22666), (4179, 19428), (4857, 16716), (5572, 14571), (6476, 12537), (7164, 11333), (8358, 9714)]