805668860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{12437}}^1$

素因数の和:12566

約数の個数: 48

約数和(自身を含む): 1755250560

約数和(自身を除く): 949581700

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 790, 820, 1580, 3239, 6478, 12437, 12956, 16195, 24874, 32390, 49748, 62185, 64780, 124370, 248740, 509917, 982523, 1019834, 1965046, 2039668, 2549585, 3930092, 4912615, 5099170, 9825230, 10198340, 19650460, 40283443, 80566886, 161133772, 201417215, 402834430, 805668860]

約数ペア:

[(1, 805668860), (2, 402834430), (4, 201417215), (5, 161133772), (10, 80566886), (20, 40283443), (41, 19650460), (79, 10198340), (82, 9825230), (158, 5099170), (164, 4912615), (205, 3930092), (316, 2549585), (395, 2039668), (410, 1965046), (790, 1019834), (820, 982523), (1580, 509917), (3239, 248740), (6478, 124370), (12437, 64780), (12956, 62185), (16195, 49748), (24874, 32390)]