68971900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1171}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 162767360

約数和(自身を除く): 93795460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1171, 1178, 1550, 1900, 2342, 2356, 2945, 3100, 4684, 5855, 5890, 11710, 11780, 14725, 22249, 23420, 29275, 29450, 36301, 44498, 58550, 58900, 72602, 88996, 111245, 117100, 145204, 181505, 222490, 363010, 444980, 556225, 689719, 726020, 907525, 1112450, 1379438, 1815050, 2224900, 2758876, 3448595, 3630100, 6897190, 13794380, 17242975, 34485950, 68971900]

約数ペア:

[(1, 68971900), (2, 34485950), (4, 17242975), (5, 13794380), (10, 6897190), (19, 3630100), (20, 3448595), (25, 2758876), (31, 2224900), (38, 1815050), (50, 1379438), (62, 1112450), (76, 907525), (95, 726020), (100, 689719), (124, 556225), (155, 444980), (190, 363010), (310, 222490), (380, 181505), (475, 145204), (589, 117100), (620, 111245), (775, 88996), (950, 72602), (1171, 58900), (1178, 58550), (1550, 44498), (1900, 36301), (2342, 29450), (2356, 29275), (2945, 23420), (3100, 22249), (4684, 14725), (5855, 11780), (5890, 11710)]