218911120

素因数分解:

$2^4\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{1993}}^1$

素因数の和:3379

約数の個数: 40

約数和(自身を含む): 509594616

約数和(自身を除く): 290683496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1373, 1993, 2746, 3986, 5492, 6865, 7972, 9965, 10984, 13730, 15944, 19930, 21968, 27460, 31888, 39860, 54920, 79720, 109840, 159440, 2736389, 5472778, 10945556, 13681945, 21891112, 27363890, 43782224, 54727780, 109455560, 218911120]

約数ペア:

[(1, 218911120), (2, 109455560), (4, 54727780), (5, 43782224), (8, 27363890), (10, 21891112), (16, 13681945), (20, 10945556), (40, 5472778), (80, 2736389), (1373, 159440), (1993, 109840), (2746, 79720), (3986, 54920), (5492, 39860), (6865, 31888), (7972, 27460), (9965, 21968), (10984, 19930), (13730, 15944)]