66736520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40693}}^1$

素因数の和:40745

約数の個数: 32

約数和(自身を含む): 153823320

約数和(自身を除く): 87086800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 40693, 81386, 162772, 203465, 325544, 406930, 813860, 1627720, 1668413, 3336826, 6673652, 8342065, 13347304, 16684130, 33368260, 66736520]

約数ペア:

[(1, 66736520), (2, 33368260), (4, 16684130), (5, 13347304), (8, 8342065), (10, 6673652), (20, 3336826), (40, 1668413), (41, 1627720), (82, 813860), (164, 406930), (205, 325544), (328, 203465), (410, 162772), (820, 81386), (1640, 40693)]