2781758

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 5101056

約数和(自身を除く): 2319298

約数列:

[1, 2, 7, 14, 23, 46, 53, 106, 161, 163, 322, 326, 371, 742, 1141, 1219, 2282, 2438, 3749, 7498, 8533, 8639, 17066, 17278, 26243, 52486, 60473, 120946, 198697, 397394, 1390879, 2781758]

約数ペア:

[(1, 2781758), (2, 1390879), (7, 397394), (14, 198697), (23, 120946), (46, 60473), (53, 52486), (106, 26243), (161, 17278), (163, 17066), (322, 8639), (326, 8533), (371, 7498), (742, 3749), (1141, 2438), (1219, 2282)]