321327920

素因数分解:

$2^4\times 5^1\times {\mathrm{911}}^1\times {\mathrm{4409}}^1$

素因数の和:5333

約数の個数: 40

約数和(自身を含む): 748077120

約数和(自身を除く): 426749200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911, 1822, 3644, 4409, 4555, 7288, 8818, 9110, 14576, 17636, 18220, 22045, 35272, 36440, 44090, 70544, 72880, 88180, 176360, 352720, 4016599, 8033198, 16066396, 20082995, 32132792, 40165990, 64265584, 80331980, 160663960, 321327920]

約数ペア:

[(1, 321327920), (2, 160663960), (4, 80331980), (5, 64265584), (8, 40165990), (10, 32132792), (16, 20082995), (20, 16066396), (40, 8033198), (80, 4016599), (911, 352720), (1822, 176360), (3644, 88180), (4409, 72880), (4555, 70544), (7288, 44090), (8818, 36440), (9110, 35272), (14576, 22045), (17636, 18220)]