28067320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11503}}^1$

素因数の和:11575

約数の個数: 32

約数和(自身を含む): 64192320

約数和(自身を除く): 36125000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11503, 23006, 46012, 57515, 92024, 115030, 230060, 460120, 701683, 1403366, 2806732, 3508415, 5613464, 7016830, 14033660, 28067320]

約数ペア:

[(1, 28067320), (2, 14033660), (4, 7016830), (5, 5613464), (8, 3508415), (10, 2806732), (20, 1403366), (40, 701683), (61, 460120), (122, 230060), (244, 115030), (305, 92024), (488, 57515), (610, 46012), (1220, 23006), (2440, 11503)]