19194980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{821}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 46400256

約数和(自身を除く): 27205276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 821, 835, 1169, 1642, 1670, 2338, 3284, 3340, 4105, 4676, 5747, 5845, 8210, 11494, 11690, 16420, 22988, 23380, 28735, 57470, 114940, 137107, 274214, 548428, 685535, 959749, 1371070, 1919498, 2742140, 3838996, 4798745, 9597490, 19194980]

約数ペア:

[(1, 19194980), (2, 9597490), (4, 4798745), (5, 3838996), (7, 2742140), (10, 1919498), (14, 1371070), (20, 959749), (28, 685535), (35, 548428), (70, 274214), (140, 137107), (167, 114940), (334, 57470), (668, 28735), (821, 23380), (835, 22988), (1169, 16420), (1642, 11690), (1670, 11494), (2338, 8210), (3284, 5845), (3340, 5747), (4105, 4676)]