69640040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28541}}^1$

素因数の和:28613

約数の個数: 32

約数和(自身を含む): 159264360

約数和(自身を除く): 89624320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 28541, 57082, 114164, 142705, 228328, 285410, 570820, 1141640, 1741001, 3482002, 6964004, 8705005, 13928008, 17410010, 34820020, 69640040]

約数ペア:

[(1, 69640040), (2, 34820020), (4, 17410010), (5, 13928008), (8, 8705005), (10, 6964004), (20, 3482002), (40, 1741001), (61, 1141640), (122, 570820), (244, 285410), (305, 228328), (488, 142705), (610, 114164), (1220, 57082), (2440, 28541)]