1640874981

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{2741}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 2329076736

約数和(自身を除く): 688201755

約数列:

[1, 3, 31, 41, 93, 123, 157, 471, 1271, 2741, 3813, 4867, 6437, 8223, 14601, 19311, 84971, 112381, 199547, 254913, 337143, 430337, 598641, 1291011, 3483811, 10451433, 13340447, 17643817, 40021341, 52931451, 546958327, 1640874981]

約数ペア:

[(1, 1640874981), (3, 546958327), (31, 52931451), (41, 40021341), (93, 17643817), (123, 13340447), (157, 10451433), (471, 3483811), (1271, 1291011), (2741, 598641), (3813, 430337), (4867, 337143), (6437, 254913), (8223, 199547), (14601, 112381), (19311, 84971)]