198540904

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{317}}^1\times {\mathrm{991}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 378547200

約数和(自身を除く): 180006296

約数列:

[1, 2, 4, 8, 79, 158, 316, 317, 632, 634, 991, 1268, 1982, 2536, 3964, 7928, 25043, 50086, 78289, 100172, 156578, 200344, 313156, 314147, 626312, 628294, 1256588, 2513176, 24817613, 49635226, 99270452, 198540904]

約数ペア:

[(1, 198540904), (2, 99270452), (4, 49635226), (8, 24817613), (79, 2513176), (158, 1256588), (316, 628294), (317, 626312), (632, 314147), (634, 313156), (991, 200344), (1268, 156578), (1982, 100172), (2536, 78289), (3964, 50086), (7928, 25043)]