28907892

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3293

約数の個数: 72

約数和(自身を含む): 82860960

約数和(自身を除く): 53953068

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2964, 3251, 4446, 6502, 8892, 9753, 13004, 19506, 29259, 39012, 42263, 58518, 61769, 84526, 117036, 123538, 126789, 169052, 185307, 247076, 253578, 370614, 380367, 507156, 555921, 741228, 760734, 802997, 1111842, 1521468, 1605994, 2223684, 2408991, 3211988, 4817982, 7226973, 9635964, 14453946, 28907892]

約数ペア:

[(1, 28907892), (2, 14453946), (3, 9635964), (4, 7226973), (6, 4817982), (9, 3211988), (12, 2408991), (13, 2223684), (18, 1605994), (19, 1521468), (26, 1111842), (36, 802997), (38, 760734), (39, 741228), (52, 555921), (57, 507156), (76, 380367), (78, 370614), (114, 253578), (117, 247076), (156, 185307), (171, 169052), (228, 126789), (234, 123538), (247, 117036), (342, 84526), (468, 61769), (494, 58518), (684, 42263), (741, 39012), (988, 29259), (1482, 19506), (2223, 13004), (2964, 9753), (3251, 8892), (4446, 6502)]