28710668

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^2\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 54

約数和(自身を含む): 60630444

約数和(自身を除く): 31919776

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 107, 148, 196, 214, 259, 428, 518, 749, 1036, 1369, 1498, 1813, 2738, 2996, 3626, 3959, 5243, 5476, 7252, 7918, 9583, 10486, 15836, 19166, 20972, 27713, 38332, 55426, 67081, 110852, 134162, 146483, 193991, 268324, 292966, 387982, 585932, 775964, 1025381, 2050762, 4101524, 7177667, 14355334, 28710668]

約数ペア:

[(1, 28710668), (2, 14355334), (4, 7177667), (7, 4101524), (14, 2050762), (28, 1025381), (37, 775964), (49, 585932), (74, 387982), (98, 292966), (107, 268324), (148, 193991), (196, 146483), (214, 134162), (259, 110852), (428, 67081), (518, 55426), (749, 38332), (1036, 27713), (1369, 20972), (1498, 19166), (1813, 15836), (2738, 10486), (2996, 9583), (3626, 7918), (3959, 7252), (5243, 5476)]