201979690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{401}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 420266880

約数和(自身を除く): 218287190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 241, 401, 418, 482, 802, 1045, 1205, 2005, 2090, 2410, 2651, 4010, 4411, 4579, 5302, 7619, 8822, 9158, 13255, 15238, 22055, 22895, 26510, 38095, 44110, 45790, 50369, 76190, 83809, 96641, 100738, 167618, 193282, 251845, 419045, 483205, 503690, 838090, 966410, 1063051, 1836179, 2126102, 3672358, 5315255, 9180895, 10630510, 18361790, 20197969, 40395938, 100989845, 201979690]

約数ペア:

[(1, 201979690), (2, 100989845), (5, 40395938), (10, 20197969), (11, 18361790), (19, 10630510), (22, 9180895), (38, 5315255), (55, 3672358), (95, 2126102), (110, 1836179), (190, 1063051), (209, 966410), (241, 838090), (401, 503690), (418, 483205), (482, 419045), (802, 251845), (1045, 193282), (1205, 167618), (2005, 100738), (2090, 96641), (2410, 83809), (2651, 76190), (4010, 50369), (4411, 45790), (4579, 44110), (5302, 38095), (7619, 26510), (8822, 22895), (9158, 22055), (13255, 15238)]