31340728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 33977672

約数列:

[1, 2, 4, 8, 19, 38, 41, 47, 76, 82, 94, 107, 152, 164, 188, 214, 328, 376, 428, 779, 856, 893, 1558, 1786, 1927, 2033, 3116, 3572, 3854, 4066, 4387, 5029, 6232, 7144, 7708, 8132, 8774, 10058, 15416, 16264, 17548, 20116, 35096, 36613, 40232, 73226, 83353, 95551, 146452, 166706, 191102, 206189, 292904, 333412, 382204, 412378, 666824, 764408, 824756, 1649512, 3917591, 7835182, 15670364, 31340728]

約数ペア:

[(1, 31340728), (2, 15670364), (4, 7835182), (8, 3917591), (19, 1649512), (38, 824756), (41, 764408), (47, 666824), (76, 412378), (82, 382204), (94, 333412), (107, 292904), (152, 206189), (164, 191102), (188, 166706), (214, 146452), (328, 95551), (376, 83353), (428, 73226), (779, 40232), (856, 36613), (893, 35096), (1558, 20116), (1786, 17548), (1927, 16264), (2033, 15416), (3116, 10058), (3572, 8774), (3854, 8132), (4066, 7708), (4387, 7144), (5029, 6232)]