25017320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10253}}^1$

素因数の和:10325

約数の個数: 32

約数和(自身を含む): 57217320

約数和(自身を除く): 32200000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10253, 20506, 41012, 51265, 82024, 102530, 205060, 410120, 625433, 1250866, 2501732, 3127165, 5003464, 6254330, 12508660, 25017320]

約数ペア:

[(1, 25017320), (2, 12508660), (4, 6254330), (5, 5003464), (8, 3127165), (10, 2501732), (20, 1250866), (40, 625433), (61, 410120), (122, 205060), (244, 102530), (305, 82024), (488, 51265), (610, 41012), (1220, 20506), (2440, 10253)]