78204980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79801}}^1$

素因数の和:79824

約数の個数: 36

約数和(自身を含む): 191045988

約数和(自身を除く): 112841008

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 79801, 159602, 319204, 399005, 558607, 798010, 1117214, 1596020, 2234428, 2793035, 3910249, 5586070, 7820498, 11172140, 15640996, 19551245, 39102490, 78204980]

約数ペア:

[(1, 78204980), (2, 39102490), (4, 19551245), (5, 15640996), (7, 11172140), (10, 7820498), (14, 5586070), (20, 3910249), (28, 2793035), (35, 2234428), (49, 1596020), (70, 1117214), (98, 798010), (140, 558607), (196, 399005), (245, 319204), (490, 159602), (980, 79801)]