204796520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83933}}^1$

素因数の和:84005

約数の個数: 32

約数和(自身を含む): 468351720

約数和(自身を除く): 263555200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 83933, 167866, 335732, 419665, 671464, 839330, 1678660, 3357320, 5119913, 10239826, 20479652, 25599565, 40959304, 51199130, 102398260, 204796520]

約数ペア:

[(1, 204796520), (2, 102398260), (4, 51199130), (5, 40959304), (8, 25599565), (10, 20479652), (20, 10239826), (40, 5119913), (61, 3357320), (122, 1678660), (244, 839330), (305, 671464), (488, 419665), (610, 335732), (1220, 167866), (2440, 83933)]