51706040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21191}}^1$

素因数の和:21263

約数の個数: 32

約数和(自身を含む): 118251360

約数和(自身を除く): 66545320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 21191, 42382, 84764, 105955, 169528, 211910, 423820, 847640, 1292651, 2585302, 5170604, 6463255, 10341208, 12926510, 25853020, 51706040]

約数ペア:

[(1, 51706040), (2, 25853020), (4, 12926510), (5, 10341208), (8, 6463255), (10, 5170604), (20, 2585302), (40, 1292651), (61, 847640), (122, 423820), (244, 211910), (305, 169528), (488, 105955), (610, 84764), (1220, 42382), (2440, 21191)]