198910390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20443}}^1$

素因数の和:20596

約数の個数: 32

約数和(自身を含む): 412151040

約数和(自身を除く): 213240650

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 9730, 20443, 40886, 102215, 143101, 204430, 286202, 715505, 1431010, 2841577, 5683154, 14207885, 19891039, 28415770, 39782078, 99455195, 198910390]

約数ペア:

[(1, 198910390), (2, 99455195), (5, 39782078), (7, 28415770), (10, 19891039), (14, 14207885), (35, 5683154), (70, 2841577), (139, 1431010), (278, 715505), (695, 286202), (973, 204430), (1390, 143101), (1946, 102215), (4865, 40886), (9730, 20443)]