81114400

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2473}}^1$

素因数の和:2534

約数の個数: 72

約数和(自身を含む): 202932324

約数和(自身を除く): 121817924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 160, 164, 200, 205, 328, 400, 410, 656, 800, 820, 1025, 1312, 1640, 2050, 2473, 3280, 4100, 4946, 6560, 8200, 9892, 12365, 16400, 19784, 24730, 32800, 39568, 49460, 61825, 79136, 98920, 101393, 123650, 197840, 202786, 247300, 395680, 405572, 494600, 506965, 811144, 989200, 1013930, 1622288, 1978400, 2027860, 2534825, 3244576, 4055720, 5069650, 8111440, 10139300, 16222880, 20278600, 40557200, 81114400]

約数ペア:

[(1, 81114400), (2, 40557200), (4, 20278600), (5, 16222880), (8, 10139300), (10, 8111440), (16, 5069650), (20, 4055720), (25, 3244576), (32, 2534825), (40, 2027860), (41, 1978400), (50, 1622288), (80, 1013930), (82, 989200), (100, 811144), (160, 506965), (164, 494600), (200, 405572), (205, 395680), (328, 247300), (400, 202786), (410, 197840), (656, 123650), (800, 101393), (820, 98920), (1025, 79136), (1312, 61825), (1640, 49460), (2050, 39568), (2473, 32800), (3280, 24730), (4100, 19784), (4946, 16400), (6560, 12365), (8200, 9892)]