28730676

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 75097344

約数和(自身を除く): 46366668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 169, 186, 338, 372, 403, 457, 507, 676, 806, 914, 1014, 1209, 1371, 1612, 1828, 2028, 2418, 2742, 4836, 5239, 5484, 5941, 10478, 11882, 14167, 15717, 17823, 20956, 23764, 28334, 31434, 35646, 42501, 56668, 62868, 71292, 77233, 85002, 154466, 170004, 184171, 231699, 308932, 368342, 463398, 552513, 736684, 926796, 1105026, 2210052, 2394223, 4788446, 7182669, 9576892, 14365338, 28730676]

約数ペア:

[(1, 28730676), (2, 14365338), (3, 9576892), (4, 7182669), (6, 4788446), (12, 2394223), (13, 2210052), (26, 1105026), (31, 926796), (39, 736684), (52, 552513), (62, 463398), (78, 368342), (93, 308932), (124, 231699), (156, 184171), (169, 170004), (186, 154466), (338, 85002), (372, 77233), (403, 71292), (457, 62868), (507, 56668), (676, 42501), (806, 35646), (914, 31434), (1014, 28334), (1209, 23764), (1371, 20956), (1612, 17823), (1828, 15717), (2028, 14167), (2418, 11882), (2742, 10478), (4836, 5941), (5239, 5484)]