31390736

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 80

約数和(自身を含む): 70828800

約数和(自身を除く): 39438064

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 152, 169, 188, 208, 247, 304, 338, 376, 494, 611, 676, 752, 893, 988, 1222, 1352, 1786, 1976, 2197, 2444, 2704, 3211, 3572, 3952, 4394, 4888, 6422, 7144, 7943, 8788, 9776, 11609, 12844, 14288, 15886, 17576, 23218, 25688, 31772, 35152, 41743, 46436, 51376, 63544, 83486, 92872, 103259, 127088, 150917, 166972, 185744, 206518, 301834, 333944, 413036, 603668, 667888, 826072, 1207336, 1652144, 1961921, 2414672, 3923842, 7847684, 15695368, 31390736]

約数ペア:

[(1, 31390736), (2, 15695368), (4, 7847684), (8, 3923842), (13, 2414672), (16, 1961921), (19, 1652144), (26, 1207336), (38, 826072), (47, 667888), (52, 603668), (76, 413036), (94, 333944), (104, 301834), (152, 206518), (169, 185744), (188, 166972), (208, 150917), (247, 127088), (304, 103259), (338, 92872), (376, 83486), (494, 63544), (611, 51376), (676, 46436), (752, 41743), (893, 35152), (988, 31772), (1222, 25688), (1352, 23218), (1786, 17576), (1976, 15886), (2197, 14288), (2444, 12844), (2704, 11609), (3211, 9776), (3572, 8788), (3952, 7943), (4394, 7144), (4888, 6422)]