7715900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 18332160

約数和(自身を除く): 10616260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 131, 155, 190, 262, 310, 380, 475, 524, 589, 620, 655, 775, 950, 1178, 1310, 1550, 1900, 2356, 2489, 2620, 2945, 3100, 3275, 4061, 4978, 5890, 6550, 8122, 9956, 11780, 12445, 13100, 14725, 16244, 20305, 24890, 29450, 40610, 49780, 58900, 62225, 77159, 81220, 101525, 124450, 154318, 203050, 248900, 308636, 385795, 406100, 771590, 1543180, 1928975, 3857950, 7715900]

約数ペア:

[(1, 7715900), (2, 3857950), (4, 1928975), (5, 1543180), (10, 771590), (19, 406100), (20, 385795), (25, 308636), (31, 248900), (38, 203050), (50, 154318), (62, 124450), (76, 101525), (95, 81220), (100, 77159), (124, 62225), (131, 58900), (155, 49780), (190, 40610), (262, 29450), (310, 24890), (380, 20305), (475, 16244), (524, 14725), (589, 13100), (620, 12445), (655, 11780), (775, 9956), (950, 8122), (1178, 6550), (1310, 5890), (1550, 4978), (1900, 4061), (2356, 3275), (2489, 3100), (2620, 2945)]