12970480

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{823}}^1$

素因数の和:1033

約数の個数: 40

約数和(自身を含む): 30346272

約数和(自身を除く): 17375792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 823, 985, 1576, 1646, 1970, 3152, 3292, 3940, 4115, 6584, 7880, 8230, 13168, 15760, 16460, 32920, 65840, 162131, 324262, 648524, 810655, 1297048, 1621310, 2594096, 3242620, 6485240, 12970480]

約数ペア:

[(1, 12970480), (2, 6485240), (4, 3242620), (5, 2594096), (8, 1621310), (10, 1297048), (16, 810655), (20, 648524), (40, 324262), (80, 162131), (197, 65840), (394, 32920), (788, 16460), (823, 15760), (985, 13168), (1576, 8230), (1646, 7880), (1970, 6584), (3152, 4115), (3292, 3940)]