71978648

素因数分解:

$2^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1321}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 158243400

約数和(自身を除く): 86264752

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 139, 196, 278, 392, 556, 973, 1112, 1321, 1946, 2642, 3892, 5284, 6811, 7784, 9247, 10568, 13622, 18494, 27244, 36988, 54488, 64729, 73976, 129458, 183619, 258916, 367238, 517832, 734476, 1285333, 1468952, 2570666, 5141332, 8997331, 10282664, 17994662, 35989324, 71978648]

約数ペア:

[(1, 71978648), (2, 35989324), (4, 17994662), (7, 10282664), (8, 8997331), (14, 5141332), (28, 2570666), (49, 1468952), (56, 1285333), (98, 734476), (139, 517832), (196, 367238), (278, 258916), (392, 183619), (556, 129458), (973, 73976), (1112, 64729), (1321, 54488), (1946, 36988), (2642, 27244), (3892, 18494), (5284, 13622), (6811, 10568), (7784, 9247)]