199213420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{203279}}^1$

素因数の和:203302

約数の個数: 36

約数和(自身を含む): 486652320

約数和(自身を除く): 287438900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 203279, 406558, 813116, 1016395, 1422953, 2032790, 2845906, 4065580, 5691812, 7114765, 9960671, 14229530, 19921342, 28459060, 39842684, 49803355, 99606710, 199213420]

約数ペア:

[(1, 199213420), (2, 99606710), (4, 49803355), (5, 39842684), (7, 28459060), (10, 19921342), (14, 14229530), (20, 9960671), (28, 7114765), (35, 5691812), (49, 4065580), (70, 2845906), (98, 2032790), (140, 1422953), (196, 1016395), (245, 813116), (490, 406558), (980, 203279)]