28531958

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 57200640

約数和(自身を除く): 28668682

約数列:

[1, 2, 7, 13, 14, 19, 26, 37, 38, 74, 91, 133, 182, 223, 247, 259, 266, 446, 481, 494, 518, 703, 962, 1406, 1561, 1729, 2899, 3122, 3367, 3458, 4237, 4921, 5798, 6734, 8251, 8474, 9139, 9842, 16502, 18278, 20293, 29659, 40586, 55081, 57757, 59318, 63973, 107263, 110162, 115514, 127946, 156769, 214526, 313538, 385567, 750841, 771134, 1097383, 1501682, 2037997, 2194766, 4075994, 14265979, 28531958]

約数ペア:

[(1, 28531958), (2, 14265979), (7, 4075994), (13, 2194766), (14, 2037997), (19, 1501682), (26, 1097383), (37, 771134), (38, 750841), (74, 385567), (91, 313538), (133, 214526), (182, 156769), (223, 127946), (247, 115514), (259, 110162), (266, 107263), (446, 63973), (481, 59318), (494, 57757), (518, 55081), (703, 40586), (962, 29659), (1406, 20293), (1561, 18278), (1729, 16502), (2899, 9842), (3122, 9139), (3367, 8474), (3458, 8251), (4237, 6734), (4921, 5798)]