221633860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11903}}^1$

素因数の和:11945

約数の個数: 72

約数和(自身を含む): 569963520

約数和(自身を除く): 348329660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 9310, 11903, 18620, 23806, 47612, 59515, 83321, 119030, 166642, 226157, 238060, 333284, 416605, 452314, 583247, 833210, 904628, 1130785, 1166494, 1583099, 1666420, 2261570, 2332988, 2916235, 3166198, 4523140, 5832470, 6332396, 7915495, 11081693, 11664940, 15830990, 22163386, 31661980, 44326772, 55408465, 110816930, 221633860]

約数ペア:

[(1, 221633860), (2, 110816930), (4, 55408465), (5, 44326772), (7, 31661980), (10, 22163386), (14, 15830990), (19, 11664940), (20, 11081693), (28, 7915495), (35, 6332396), (38, 5832470), (49, 4523140), (70, 3166198), (76, 2916235), (95, 2332988), (98, 2261570), (133, 1666420), (140, 1583099), (190, 1166494), (196, 1130785), (245, 904628), (266, 833210), (380, 583247), (490, 452314), (532, 416605), (665, 333284), (931, 238060), (980, 226157), (1330, 166642), (1862, 119030), (2660, 83321), (3724, 59515), (4655, 47612), (9310, 23806), (11903, 18620)]