221125940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{1399}}^1$

素因数の和:2544

約数の個数: 48

約数和(自身を含む): 531552000

約数和(自身を除く): 310426060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1129, 1399, 2258, 2798, 4516, 5596, 5645, 6995, 7903, 9793, 11290, 13990, 15806, 19586, 22580, 27980, 31612, 39172, 39515, 48965, 79030, 97930, 158060, 195860, 1579471, 3158942, 6317884, 7897355, 11056297, 15794710, 22112594, 31589420, 44225188, 55281485, 110562970, 221125940]

約数ペア:

[(1, 221125940), (2, 110562970), (4, 55281485), (5, 44225188), (7, 31589420), (10, 22112594), (14, 15794710), (20, 11056297), (28, 7897355), (35, 6317884), (70, 3158942), (140, 1579471), (1129, 195860), (1399, 158060), (2258, 97930), (2798, 79030), (4516, 48965), (5596, 39515), (5645, 39172), (6995, 31612), (7903, 27980), (9793, 22580), (11290, 19586), (13990, 15806)]