19455940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19853}}^1$

素因数の和:19876

約数の個数: 36

約数和(自身を含む): 47530476

約数和(自身を除く): 28074536

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19853, 39706, 79412, 99265, 138971, 198530, 277942, 397060, 555884, 694855, 972797, 1389710, 1945594, 2779420, 3891188, 4863985, 9727970, 19455940]

約数ペア:

[(1, 19455940), (2, 9727970), (4, 4863985), (5, 3891188), (7, 2779420), (10, 1945594), (14, 1389710), (20, 972797), (28, 694855), (35, 555884), (49, 397060), (70, 277942), (98, 198530), (140, 138971), (196, 99265), (245, 79412), (490, 39706), (980, 19853)]