199979988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{1667}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 503469120

約数和(自身を除く): 303489132

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 769, 1538, 1667, 2307, 3076, 3334, 4614, 5001, 6668, 9228, 9997, 10002, 19994, 20004, 21671, 29991, 39988, 43342, 59982, 65013, 86684, 119964, 130026, 260052, 1281923, 2563846, 3845769, 5127692, 7691538, 15383076, 16664999, 33329998, 49994997, 66659996, 99989994, 199979988]

約数ペア:

[(1, 199979988), (2, 99989994), (3, 66659996), (4, 49994997), (6, 33329998), (12, 16664999), (13, 15383076), (26, 7691538), (39, 5127692), (52, 3845769), (78, 2563846), (156, 1281923), (769, 260052), (1538, 130026), (1667, 119964), (2307, 86684), (3076, 65013), (3334, 59982), (4614, 43342), (5001, 39988), (6668, 29991), (9228, 21671), (9997, 20004), (10002, 19994)]