164575280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66361}}^1$

素因数の和:66405

約数の個数: 40

約数和(自身を含む): 394986624

約数和(自身を除く): 230411344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66361, 132722, 265444, 331805, 530888, 663610, 1061776, 1327220, 2057191, 2654440, 4114382, 5308880, 8228764, 10285955, 16457528, 20571910, 32915056, 41143820, 82287640, 164575280]

約数ペア:

[(1, 164575280), (2, 82287640), (4, 41143820), (5, 32915056), (8, 20571910), (10, 16457528), (16, 10285955), (20, 8228764), (31, 5308880), (40, 4114382), (62, 2654440), (80, 2057191), (124, 1327220), (155, 1061776), (248, 663610), (310, 530888), (496, 331805), (620, 265444), (1240, 132722), (2480, 66361)]