12974920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 33696000

約数和(自身を除く): 20721080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 311, 596, 622, 745, 1043, 1192, 1244, 1490, 1555, 2086, 2177, 2488, 2980, 3110, 4172, 4354, 5215, 5960, 6220, 8344, 8708, 10430, 10885, 12440, 17416, 20860, 21770, 41720, 43540, 46339, 87080, 92678, 185356, 231695, 324373, 370712, 463390, 648746, 926780, 1297492, 1621865, 1853560, 2594984, 3243730, 6487460, 12974920]

約数ペア:

[(1, 12974920), (2, 6487460), (4, 3243730), (5, 2594984), (7, 1853560), (8, 1621865), (10, 1297492), (14, 926780), (20, 648746), (28, 463390), (35, 370712), (40, 324373), (56, 231695), (70, 185356), (140, 92678), (149, 87080), (280, 46339), (298, 43540), (311, 41720), (596, 21770), (622, 20860), (745, 17416), (1043, 12440), (1192, 10885), (1244, 10430), (1490, 8708), (1555, 8344), (2086, 6220), (2177, 5960), (2488, 5215), (2980, 4354), (3110, 4172)]