390789700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:662

約数の個数: 108

約数和(自身を含む): 994319172

約数和(自身を除く): 603529472

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 173, 175, 196, 245, 346, 350, 461, 490, 692, 700, 865, 922, 980, 1211, 1225, 1730, 1844, 2305, 2422, 2450, 3227, 3460, 4325, 4610, 4844, 4900, 6055, 6454, 8477, 8650, 9220, 11525, 12110, 12908, 16135, 16954, 17300, 22589, 23050, 24220, 30275, 32270, 33908, 42385, 45178, 46100, 60550, 64540, 79753, 80675, 84770, 90356, 112945, 121100, 159506, 161350, 169540, 211925, 225890, 319012, 322700, 398765, 423850, 451780, 558271, 564725, 797530, 847700, 1116542, 1129450, 1595060, 1993825, 2233084, 2258900, 2791355, 3907897, 3987650, 5582710, 7815794, 7975300, 11165420, 13956775, 15631588, 19539485, 27913550, 39078970, 55827100, 78157940, 97697425, 195394850, 390789700]

約数ペア:

[(1, 390789700), (2, 195394850), (4, 97697425), (5, 78157940), (7, 55827100), (10, 39078970), (14, 27913550), (20, 19539485), (25, 15631588), (28, 13956775), (35, 11165420), (49, 7975300), (50, 7815794), (70, 5582710), (98, 3987650), (100, 3907897), (140, 2791355), (173, 2258900), (175, 2233084), (196, 1993825), (245, 1595060), (346, 1129450), (350, 1116542), (461, 847700), (490, 797530), (692, 564725), (700, 558271), (865, 451780), (922, 423850), (980, 398765), (1211, 322700), (1225, 319012), (1730, 225890), (1844, 211925), (2305, 169540), (2422, 161350), (2450, 159506), (3227, 121100), (3460, 112945), (4325, 90356), (4610, 84770), (4844, 80675), (4900, 79753), (6055, 64540), (6454, 60550), (8477, 46100), (8650, 45178), (9220, 42385), (11525, 33908), (12110, 32270), (12908, 30275), (16135, 24220), (16954, 23050), (17300, 22589)]