12808040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 33264000

約数和(自身を除く): 20455960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 307, 596, 614, 745, 1043, 1192, 1228, 1490, 1535, 2086, 2149, 2456, 2980, 3070, 4172, 4298, 5215, 5960, 6140, 8344, 8596, 10430, 10745, 12280, 17192, 20860, 21490, 41720, 42980, 45743, 85960, 91486, 182972, 228715, 320201, 365944, 457430, 640402, 914860, 1280804, 1601005, 1829720, 2561608, 3202010, 6404020, 12808040]

約数ペア:

[(1, 12808040), (2, 6404020), (4, 3202010), (5, 2561608), (7, 1829720), (8, 1601005), (10, 1280804), (14, 914860), (20, 640402), (28, 457430), (35, 365944), (40, 320201), (56, 228715), (70, 182972), (140, 91486), (149, 85960), (280, 45743), (298, 42980), (307, 41720), (596, 21490), (614, 20860), (745, 17192), (1043, 12280), (1192, 10745), (1228, 10430), (1490, 8596), (1535, 8344), (2086, 6140), (2149, 5960), (2456, 5215), (2980, 4298), (3070, 4172)]