209957276

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 397605600

約数和(自身を除く): 187648324

約数列:

[1, 2, 4, 17, 34, 68, 97, 139, 194, 229, 278, 388, 458, 556, 916, 1649, 2363, 3298, 3893, 4726, 6596, 7786, 9452, 13483, 15572, 22213, 26966, 31831, 44426, 53932, 63662, 88852, 127324, 229211, 377621, 458422, 541127, 755242, 916844, 1082254, 1510484, 2164508, 3087607, 6175214, 12350428, 52489319, 104978638, 209957276]

約数ペア:

[(1, 209957276), (2, 104978638), (4, 52489319), (17, 12350428), (34, 6175214), (68, 3087607), (97, 2164508), (139, 1510484), (194, 1082254), (229, 916844), (278, 755242), (388, 541127), (458, 458422), (556, 377621), (916, 229211), (1649, 127324), (2363, 88852), (3298, 63662), (3893, 53932), (4726, 44426), (6596, 31831), (7786, 26966), (9452, 22213), (13483, 15572)]